Pulsar Axion 2 Instruction Manual

Specifications

XQ35

Model	XQ35
SKU	77478
Microbolometer
Type	uncooled
Resolution, Pixels	384×288
Pixel Pitch, µm	17
Frame Rate, Hz	50
Optical Characteristics
Optical Magnification, x	2
Smooth Digital Zoom, x	2-8
Digital Zoom, x	x1, x2, x4
Lens Focus, mm	35
Relative Aperture, D/f’	1.0
Minimum Focus Distance, m/y	5 / 5.47
Eye Relief Diameter, mm/inch	4 / 0.16
Angular Field of View (Horizontal x Vertical), degree	10.7х8
Linear Field of View, m at 100 m	18.2
Eyepiece Focus Range, Diopter	+4 / -5
Detection Distance for DeerSized Objects, m/y	1300 / 1422
Display
Type	AMOLED
Resolution, Pixels	640×400
Operational Characteristics
Power Supply, V	3 – 4.2
Battery Type/Capacity/Nominal Output Voltage	APS 5 Li-ion Battery Pack / 4900 mAh / DC 3.7 V
External Power Supply	5 V, 9 V (USB Type-C)
Battery Run Time at t=22°C, hours*	11
Degree of Protection, IP Code (IEC60529)	IPX7
Operating Temperature Range, °C / °F	-25 … +40 / -13 – +104
Dimensions, mm/inch	152x50x74 / 5.98×1.97×2.91
Weight (without battery), kg/oz	0.3 / 10.58
Video Recorder
Photo/Video Resolution, Pixels	528×400
Video/Photo Format	.mp4 / .jpg
Built-in Memory	16 GB
Wi-Fi Channel**
Frequency	2.4/5 GHz
Standard	IEEE 802.11 b/g/n/ac

*Actual battery life may vary depending on the use of Wi-Fi and the built-in
video recorder.

** Reception range may vary depending on various factors: obstacles, other
Wi-Fi networks.

XG35

Model	XG35
SKU	77476
Microbolometer
Type	uncooled
Resolution, Pixels	640×480
Pixel Pitch, µm	12
Frame Rate, Hz	50
Optical Characteristics
Optical Magnification, x	2.5
Smooth Digital Zoom, x	2.5-20
Digital Zoom, x	x1, x2, x4, x8
Lens Focus, mm	35
Relative Aperture, D/f’	1.0
Minimum Focus Distance, m/y	5 / 5.47
Eye Relief Diameter, mm/inch	4 / 0.16
Angular Field of View (Horizontal x Vertical), degree	12.5х9.4
Linear Field of View, m at 100 m	21.9
Eyepiece Focus Range, Diopter	+4 / -5
Detection Distance for DeerSized Objects, m/y	1750 / 1914
Display
Type	AMOLED
Resolution, Pixels	1024×768
Operational Characteristics
Power Supply, V	3 – 4.2
Battery Type/Capacity/Nominal Output Voltage	APS 5 Li-ion Battery Pack / 4900 mAh / DC 3.7 V
External Power Supply	5 V, 9 V (USB Type-C)
Battery Run Time at t=22°C, hours*	7
Degree of Protection, IP Code (IEC60529)	IPX7
Operating Temperature Range, °C / °F	-25 … +40 / -13 – +104
Dimensions, mm/inch	152x50x74 / 5.98×1.97×2.91
Weight (without battery), kg/oz	0.3 / 10.58
Video Recorder
Photo/Video Resolution, Pixels	1024×768
Video/Photo Format	.mp4 / .jpg
Built-in Memory	16 GB
Wi-Fi Channel**
Frequency	2.4/5 GHz
Standard	IEEE 802.11 b/g/n/ac

*Actual battery life may vary depending on the use of Wi-Fi and the built-in
video recorder.

** Reception range may vary depending on various factors: obstacles, other
Wi-Fi networks.

Description

Axion 2 thermal imaging monoculars are designed for use both at nighttime and during the day and provide exceptional image quality even in adverse weather conditions (fog, smog, rain) and beyond obstacles like branches, tall grass, dense foliage, etc. known to hinder target detection.

Unlike night-vision devices based on electron-optical converters, thermal imaging devices do not need an external light source and are resistant to bright light.

Axion 2 thermal imagers are designed for various applications including hunting, observation, security, terrain orientation, search and rescue operations, etc.

To get started, see the sections:

Battery Charging

Battery Installation

Powering on and Image Settings

Package Contents

Axion 2 thermal monocular
APS 5 rechargeable battery
2 battery-locking covers
Power adapter
USB Type-C cable
Carrying case
Hand strap
Quick reference user manual
Lens cleaning cloth
Warranty information
Tripod adapter

Features

Compact and lightweight
Functional and ergonomic design
8-color display palette
3 calibration modes: Manual, Semi-Automatic, Automatic
Three levels of sensitivity enhancement: Normal, High, Ultra
Stadiametric Rangefinder
Display-Off function
Defective pixel repair
Updatable firmware
Wide operating temperature range (-25°С to +40°С / -13°F to +104°F)
Fully waterproof (IPX7 rated)
Tripod mount

Video/Audio Recording

Built-in video and sound recorder
Integration with iOS and Android devices
Wi-Fi remote control and viewing using a smartphone
Storing photos and videos in Cloud when using the Stream Vision 2 App

Battery Pack

Quick Change Li-Ion Battery Pack APS 5
Charging from USB Power Bank
Quick-Charge power delivery

Components and Controls

Eyepiece focus ring
LED indicator
DOWN/REC button
MENU button
UP/ZOOM button
Power ON/OFF/CALIBRATION button
Lens focus ring
Lens cover
Tripod adapter socket
USB Type-C connector

LED indicator (2) displays the current status of the device:

LED Indicator	Operating Mode
	Device is turned on
	The device is turned on/video recording
	The device is turned on/battery charge < 10%
	The device is turned on/video recording/battery charge < 10%

Battery Charging

The Axion 2 thermal imager comes with an APS 5 rechargeable Lithium-ion battery. APS 5 batteries support USB Power Delivery fast charging technology when using a standard charging set (charger*, USB Type-C cable, power adapter). Before first use, make sure the battery is fully charged.

Option 1

Install the APS 5 battery (11) in the battery compartment (13) of the
device.
Connect the USB cable (17) to the USB Type-C connector (9) of the
device.
Connect the other end of the USB cable (17) to the Power Adapter
(18).
Plug the Power Adapter (18) into a 100-240 V socket.
Wait until the battery is fully charged (indication in the status bar:

Option 2

Insert the APS 5 battery (13) along the guide into the APS 5 charger* (15) slot as far as it will go.
Connect the plug of the USB Type-C cable (17) to the USB Type-C connector of the Power Adapter(18).
Plug the Power Adapter (18) into a 100-240 V socket.
Connect the other end of the USB Type-C cable (17) to the USB Type-C connector (15) of the charger.
LED indicators (16) will display the battery charge level (see Table).
Wait until the battery is fully charged (LED indication (16):

Note: Two batteries can be charged at the same time, a second slot is provided for it.

LED indication (16) in the battery charging mode	Battery Level
	Battery charge level is from 0% to 25%
	Battery charge level is from 26% to 50%
	Battery charge level is from 51% to 80%
	Battery charge level is from 81% to 99%
	Battery is fully charged. Charging will automatically stop. The battery can be disconnected from the charger.
	Defective battery. Do not use the battery!

LED indication (16) in the standby mode**	Battery Level
	Battery charge level is from 0% to 25%
	Battery charge level is from 26% to 50%
	Battery charge level is from 51% to 80%
	Battery charge level is from 81% to 99%
	Battery is fully charged. It can be disconnected from the charger.
	Defective battery. Do not use the battery!

*Available separately

** Standby mode is when the batteries are in the charger but the Power Adapter is not connected. In this mode, the indicators are only on for 10 seconds.

Attention! When using a Power Adapter that does not support USB Power Delivery fast charging technology, the flicker frequency of the LED indicators decreases by a factor of 3 and the charge time increases.

Attention! The charger heats up during fast charging. Excess heat is removed through the radiator and does not affect the device operation.

Battery Installation

Put the Lock-cover (12) on the rechargeable APS 5 battery (11).
Insert the APS 5 battery (11) along the guide into the battery compartment (13).
Lock the battery (11) by turning the Lock-cover (12) clockwise until it stops.
Turn the Lock-cover (12) counter-clockwise to remove the battery (11).

External Power Supply

Show device diagram

External power can be supplied from an external source, such as a Power Bank (5 V, 9 V).

Connect the external power source to the USB Type-C connector (9) on the device.
The device will switch to draw power from the external source while the АPS5 battery is gradually recharged.
A battery icon will appear on the display showing the percentage charged level.
An icon will be displayed when the device is powered by an external power source and the АPS5 battery is not connected.
The device automatically switches to the APS 5 battery when the external power supply is disconnected.

Attention! Charging APS 5 batteries from an external source at temperatures below 0°C (<32°F) can reduce battery life. When using external power, connect the power bank to the device only after it has been turned on and working (warming) for at least several minutes.

Precautions

Always use the APS 5 charger (purchased separately) to charge APS 5 batteries. Using an unsuitable charger can cause irreparable damage to the battery and fire.
Do not charge the battery immediately after exposure to a cold environment. Let the battery warm for at least 30 minutes before charging.
Do not leave the battery unattended while charging.
Do not use the charger if it has been modified or damaged.
Do not leave the battery in a plugged-in charger after charging is complete.
Do not expose the battery to high temperatures or open flames.
Do not use the battery as a power source for devices that do not support APS 5 batteries.
Do not disassemble or deform the battery or charger.
Do not drop or strike the battery or charger.
Protect the battery and charger from water and moisture.
Keep the battery out of the reach of children.

Recommendations for Use

The batteries should be partially charged (50 to 80 %) for long-term storage.
Charge at an ambient temperature of 0°C to +35°C (32°F to 95°F) or the lifespan of the battery will decrease significantly.
Using the battery at sub 0°C (<32°F) ambient temperature decreases battery capacity. This is normal and not a defect.
Using the battery at temperatures outside the range of -25°C to +40°C (- 13°F to 104°F) may reduce battery life.
The battery is short-circuit protected. Any situation that may cause short-circuiting should be avoided.

Powering on and Image Setting

Show device diagram

Open the lens cover (8). The lens cover can be secured to the strap using the built-in magnet.
Press the ON/OFF (6)button briefly to turn on the device.
Adjust the eyepiece focus ring (1) of the device until the symbols on the display are sharp.
Rotate the lens focus ring (7) to focus on the object being observed.
Enter the main menu with a long press of the MENU (4) button and select the desired calibration mode: Manual (M), Semi-Automatic (SA) or Automatic (A).
Calibrate the image by briefly pressing the ON/OFF (6) button.If the SA or A calibration mode has been selected the microbolometer is closed with an internal shutter automatically. However, if the M calibration
mode has been selected you must close the lens cover before calibrating manually.
Select the required amplification level (“Normal” , “High”, “Ultra” ) by briefly pressing the UP (5) button.
Enter the main menu with a long press of the MENU (4) button and select the desired color mode (for more details see the Colour Modes section).
Activate the quick menu by briefly pressing the MENU (4) button to adjust the brightness, contrast and smooth digital zoom (for more details see the Quick Menu section).
After use, turn the device off by a long press of the ON/OFF (6)

Warning! Never point the lens at intensive energy sources such as laser radiation emitting devices or the sun. It can damage electronic components in the device. The warranty does not cover damage arising from failure to comply with operating instructions.

Button Operation

Operation	Button
Power device on	short press
Power device off	long press for 3 secs
Turn display of	long press for less than 3 secs
Turn display on	short press
Calibrate the microbolometer	short press
Switching amplification levels	short press
Control discrete digital zoom	long press
Video Recorder	Button
Start/pause/resume video recording	short press
Stop video recording	long press
Switch to video / photo	long press
Capture a photo	short press
Main Menu	Button
Enter main menu	long press
Navigation upwards/rightwards	short press
Navigation downwards/leftwards	short press
Confirm selection	short press
Exit submenu without confirming selection	long press
Exit menu (switch to viewing mode)	long press
Quick Menu	Button
Enter quick menu	short press
Switch between quick menu options	short press
Increase value	short press
Decrease value	short press
Exit quick menu	long press

Status Bar

The status bar at the bottom of the display shows current operating statuses via icons, including:

Color Mode (shown only when the Black Hot color mode is selected)
Amplification level
Smoothing Filter (displayed when the function is on)
Calibration Mode (in Automatic calibration mode a countdown timer will appear instead of the calibration mode icon 3 seconds before automatic calibration begins).
Microphone
Magnification
Wi-Fi Connection
Time
Power Indication:

-charge level if the device is powered by a battery

-charge level if the device is charging and powered by a battery

-no battery, the device is connected to an external power supply

Quick Menu

Show device diagram

The basic settings (adjusting brightness and contrast, using the Stadiametric Rangefinder function) can be changed using the quick access menu.

Enter the menu by briefly pressing the MENU (4).
A short press of the МENU (4) button enables you to toggle between functions, as described below.

Brightness – press the UP (5)/DOWN (3) buttons to change display brightness from 0 to 20.

Contrast – press the UP (5)/DOWN (3) buttons to change image contrast from 0 to 20.

Note: display brightness and contrast settings are saved in the memory when the device is turned off.

Stadiometric Rangefinder – change the position of special marker lines to determine the distance to the object being observed by pressing the UP (5)/DOWN (3) buttons (for more details see the Stadiametric Rangefinder section).

Smooth Digital Zoom – press the UP (5)/DOWN (3) button to change the value of the digital zoom from 2 to 8. The digital zoom changes in 0.1 increments.

Press and hold the MENU (4) button to exit the menu or wait for 10 seconds to exit automatically.

Amplification Level

Show device diagram

Sensitivity enhancement levels (Normal , High , Ultra ) are software algorithms that enhance the quality of detection and recognition in various observation conditions. When the temperature contrast decreases (fog, precipitation, high humidity), it is recommended to increase the amplification level. To optimize the image, activate the Smoothing Filter in the main menu.

Press the UP button (5) briefly to switch the amplification level.

Video Recording and Photography

Show device diagram

Axion 2 thermal imagers feature video recording and photography of the image being observed to the internal memory card.

Before using this feature please set the date and time (see General Settings section).

The built-in recorder operates in two modes – Video and Photo.

Video mode. Video recording

Switch to Video mode by pressing and holding the DOWN/REC (3) button.
The icon and the remaining recording time in HH:MM (Hours:Minutes) format are displayed in the upper left corner, for example 4:20.
Press the DOWN/REC (3) button briefly to start video recording.
When the video recording starts, the icon will disappear and the REC icon and timer in MM:SS (Minutes:Seconds) format will appear
Pause and resume recording video with a short press of the DOWN/REC (3) button.
Stop recording video with a long press of the DOWN/REC (3)button.
Video files are saved to the built-in memory card after the video recording has been stopped.
Press and hold the DOWN/REC (3) button to switch between the Video and Photo modes (Video-> Photo-> Video…).

Photo Mode. Capturing an image

Switch to the Photo mode by pressing and holding the DOWN/REC (3) button.
Press the DOWN/REC (3) button briefly to take a photo. The icon flashes – the photo file is being saved to the built-in SD card.

Notes:

You can enter and operate the menu during video recording.
Recorded videos and photos are saved to the internal memory card in the format img_xxx.jpg (photos), video_xxx.mp4 (videos).
The maximum duration of a recorded file is five minutes. After this time expires, a video is recorded into a new file. The number of recorded files is limited by the capacity of the device’s internal memory.
Regularly check the free capacity of the internal memory and move recorded footage to other storage media to free up space on the internal memory card.

Discrete Digital Zoom

Show device diagram

The device functionality allows you to quickly increase the base magnification by 2 or 4 times as well as return to the base magnification.

Press and hold the UP/ZOOM (5) button to change the digital zoom.

PiP Function

Show device diagram

The PiP (Picture-in-Picture) function allows you to see both the main image and a magnified image in a dedicated window.

To turn on and off the PiP function see the PiP Mode section.
Press and hold the UP (5) button to change the magnification ratio in the PiP window.
The zoomed image is displayed in a dedicated window, while the image in the rest of the screen is displayed at base magnification (2x).
When the PiP is turned on you can control both the discrete and smooth digital zoom. In this case the zoom value changes only take place in the dedicated window.
When the PiP function is turned off, the screen will display at the magnification that was set in PiPmode.

Display-Off Function

Show device diagram

This function deactivates the image transmission to the display by minimizing its brightness. This allows the user to remain unseen. However, the device stays on.

When this function is in use, the device switches to the standby mode, which allows it to be switched on instantly.

When the device is on, press and hold the ON/OFF (6) button. The display will turn off, the current time and the “Display off” icon will appear.
Turn the display back on with a short press of the ON/OFF (6) button.
When you press and hold the ON/OFF (6) button, the display shows the “Display off” icon with a countdown. Pressing & holding the button down for the duration of the countdown will power the device off completely.

Wi-Fi Function

The device has a function enabling wireless communication with external devices (smartphone or tablet) via Wi-Fi.

Turn on the wireless module in the WI-Fi Activation menu option.

Wi-Fi is displayed in the status bar as follows:

Indication on the status bar	Connection Status
	Wi-Fi is switched off
	Wi-Fi connection is in progress
	Wi-Fi is switched on, no connection with device
	Wi-Fi is switched on, device connected

The device is recognized by an external device as AXION2_XXXX where XXXX are the four last digits of the serial number.
After entering the password on the external device (see Password Setup subsection of the Wi-Fi Settings section for more information on setting a password) and setting up a connection, the icon in the status bar changes to .

Stadiametric Rangefinder

Show device diagram

Axion 2 thermal imagers are equipped with a stadiametric rangefinder which allows the user to determine the approximate distance to an object of a known size with reasonable accuracy.

Select the Stadiametric Rangefinder function with short presses of the MENU (4) button until the icon is selected.
You will see on the display: measurement bars, icons of three reference objects and respective distances for the three objects.
Position the lower fixed bar under the object being ranged.
By pressing the UP (5)/DOWN (3) buttons, move the upper horizontal bar relative to the lower fixed bar until the object fits entirely between the two bars. The distance to the object is automatically recalculated as you move the upper line.
Exit the rangefinder mode with a long press of the MENU (4)button or wait 10 seconds to exit automatically.

Notes:

There are three predefined values for the reference objects: Hare – 0.3 m height, Boar – 0.7 m height, Deer – 1.7 m height.
Before it appears on the display, a measured distance value is rounded up to 5m for larger values and rounded down to 1m for smaller values.
To select the unit of measurement (Meters or Yards), go to the General Settings menu item => Units of Measure submenu

Installing the Device on a Tripod

Open the cover (20) of the socket (10).
Attach the tripod adaptor (19) to the socket (10).
Rotate the adaptor handle clockwise until it stops.
Secure the adaptor with the device on a tripod.

USB Connection

Show device diagram

Connect one end of the USB cable to the USB Type-C port (9) of your device and the other end to the USB port of your PC / laptop.
Turn the device on with a short press of the ON/OFF(6) button (a device that has been turned off cannot be detected by your computer).
Your device will be detected by the computer automatically; no drivers need to be installed.
Two connection modes will appear on the display: Power and Memory Card(external storage device).
Select the connection mode with the UP (5)/DOWN (3) buttons.
Confirm the selection with a short press of the MENU (4) button.

Power

In this mode, a PC/laptop is used as an external power supply. The status bar shows the icon . The device continues operating and all functions are available.
Battery recharge feasibility depends on your computer’s USB port.
When the USB is disconnected from the device when in the Power mode, the device keeps operating with the Battery Pack if it is available and sufficiently charged.

Memory Card (external memory)

In this mode the device is detected by the computer as a flash card. This mode is designed for work with the files saved in the device’s memory. The device’s functions are not available in this mode; the device turns off automatically.
If video recording was in progress when the connection was made, recording stops and the video is saved.
When the USB is disconnected from the device where connection is in the Memory Card mode, the device remains in the Off state. Turn the device On for further operation.

Install the Stream Vision 2 application to download files, update firmware, control the device by remote control and broadcast images from your device to a smartphone or a tablet via WiFi.

We recommend using the latest version – Stream Vision 2.

You can find further guidelines on Stream Vision 2 here

Download from Google Play

Download from App Store

Find answers to frequently asked questions about using Stream Vision 2 here

Firmware Update

Download free Stream Vision 2 App in Google Play or App Store.
Connect your Pulsar device to your mobile device (smartphone or tablet).
Launch Stream Vision 2 and go to section “Settings”.
Select your Pulsar device and press “Check firmware update”.
Wait for the update to download and install. Pulsar device will reboot and will be ready to operate.

Important:

if your Pulsar device is connected to phone, please turn on mobile data transfer (GPRS/3G/4G) to download update;
if your Pulsar device is not connected to your phone but is already listed in “Settings” > “My devices” section, you may use Wi-Fi to download update.

Find answers to frequently asked questions about using Stream Vision 2 here.

Technical Inspection

It is recommended to carry out a technical inspection before each use of the device. Check the following:

The device appearance (there should be no cracks on the body).
The condition of the lens and eyepiece (there should be no cracks, grease spots, dirt or other deposits).
The state of the rechargeable battery (should be charged) and the electric contacts (should be no signs of salts, oxidation or debris).
The controls should be in working order.

Technical Maintenance and Storage

Maintenance should be carried out no less frequently than twice a year, and should consist of the following measures:

Wipe external plastic and metal surfaces with a cotton cloth to remove dust and dirt. To avoid damage to the paint coating, do not use chemically active substances, solvents, etc.
Clean the electric contacts of the Battery Pack and the device’s battery slot using a non-greasy organic solvent.
Check the objective and eyepiece lenses and if required, remove dust and dirt (preferably using a non-contact method). Cleaning of the exterior surfaces of the optics should only be done with products specifically designed for this purpose.
Store the device in a carrying case. Remove the Battery Pack for longterm storage.

Troubleshooting

The device does not turn on

Possible cause

Battery Pack is discharged.

Solution

Charge the Battery Pack.

The device does not operate from an external power source

Possible cause

The USB cable is damaged.

Solution

Replace the USB cable.

Possible cause

The external power supply is discharged.

Solution

Charge the external power supply (if necessary).

The image is blurry, with vertical stripes or an uneven background

Possible cause

Calibration is required.

Solution

Perform the calibration according to Calibration Mode section.

Black screen after calibration

Solution

If the image does not clear after calibration, you need to recalibrate.

Poor quality image. There is noise or ghost images of previous scenes or objects

Possible cause

Manual calibration has been performed with the lens cover open.

Solution

Check the Calibration Mode, close the lens cover and calibrate the device.

The image is too dark

Possible cause

Brightness or contrast level is too low.

Solution

Adjust the brightness or contrast level in the Quick Menu.

Color bars appear on the display or the image disappears

Possible cause

The device was exposed to static electricity during operation.

Solution

After exposure to static electricity, the device may either reboot automatically or require turning off and on again.

The image of the object being observed is missing

Possible cause

You are looking through glass.

Solution

Remove the glass or change the viewing position to avoid it.

Poor image quality / Detection range reduced

Possible cause

These problems may occur during observation in adverse weather conditions (snow, rain, fog, etc.).

Smartphone or tablet PC cannot be connected to the device

Possible cause

Device password has been changed.

Solution

Delete the network and connect again using the password saved in the device.

Possible cause

The device is in an area with too many Wi-Fi networks that may be causing signal interference.

Solution

To ensure a stable Wi-Fi connection, relocate the device to an area with fewer or no Wi-Fi networks.

Possible cause

The device has a 5 GHz network enabled, but the smartphone only supports 2.4 GHz.

Solution

Switch the device’s Wi-Fi bandwidth to 2.4 GHz.

More information on solving problems with connection to Stream Vision 2 by following the link.

Wi-Fi signal is missing or interrupted

Possible cause

Smartphone or tablet is out of range of a strong Wi-Fi signal. There are obstacles between the device and the smartphone or tablet (e.g., concrete walls).

Solution

Relocate smartphone or tablet into the Wi-Fi signal line of sight.

More information on solving problems with connection to Stream Vision 2 by following the link

The image quality during the device operation at below zero temperatures is worse than at positive temperatures

Possible cause

Because of variations in thermal conductivity, objects (surrounding environment, background) under observation become warm more quickly at above-zero temperatures, which allows higher temperature contrast, so the quality of the image produced by a thermal imager will be better.

At low operating temperatures, objects under observation (background) normally cool down to roughly identical temperatures, which leads to reduced temperature contrast and to image quality (precision) degradation. This is normal for thermal imaging devices.

Legal Compliances and Disclaimers

Attention! A license is required for Axion Thermal Imager when exporting outside your country.

Electromagnetic compatibility. This product complies with the requirements of European standard EN 55032: 2015, Class A.

Caution! Operation of this equipment in a residential environment could cause radio interference.

This product is subject to change in line with improvements to its design.

Repair of the device is possible within 5 years.