ISOtunes Sport Caliber Earbuds

• Electronic hearing protection: The CALIBER earbuds let ambient sound come through while reducing harmful impulse noise, so range commands and movement in the field stay easier to hear without removing protection.
• Bluetooth connectivity: Wireless audio support adds music, calls or app-based communication without extra cables, which keeps gear simpler around rifles, shotguns and layered clothing.
• Lightweight earbud format: At 8.00 g, this compact in-ear design is easy to wear for long sessions and fits where bulkier over-ear protection can interfere with cheek weld or hat brims.
• 13.00 h battery life: Long runtime supports extended training days, hunts and travel between sessions without frequent charging interruptions.
• Waterproof, dust-tight build: The CALIBER BT platform is built to handle rain, sweat and dirty range conditions, making it a practical choice for regular outdoor shooting use.

About the Caliber Series

The ISOtunes Sport Caliber series is built for shooters who want in-ear electronic hearing protection instead of traditional earmuffs. Within the ISOtunes Sport lineup, the series sits as a compact option for range use, hunting and general firearms training where low bulk matters as much as noise reduction. Its defining idea is to combine hearing protection with the everyday convenience of wireless earbuds, so users can move freely, maintain a natural cheek weld and still stay connected.

A key part of the series is Tactical Sound Control, which amplifies environmental sound while suppressing harmful gunshot noise. In practice, that makes the Caliber concept useful for situations where situational awareness matters, such as hearing conversation on the firing line, range instructions or movement in the field. The series also combines this electronic protection with Bluetooth audio, giving it a broader role than passive earplugs alone. The overall design philosophy is straightforward: keep the form factor small, keep operation simple and deliver hearing protection that fits naturally into shooting routines rather than getting in the way of them.

About the ISOtunes Sport Caliber Earbuds

The ISOtunes Sport Caliber Earbuds are designed for shooters who prefer the freedom of a cordless in-ear system over the larger footprint of earmuffs. Their electronic hearing protection format helps preserve awareness of the surrounding environment while reducing exposure to damaging impulse noise, which is especially useful on busy ranges and during hunts where communication and environmental cues still matter. Because the earbuds sit inside the ear rather than around it, they also work well with hats, eye protection and long-gun stocks that can sometimes conflict with bulkier ear pro.

Bluetooth connectivity expands the role of the CALIBER beyond simple hearing protection. It allows the earbuds to handle audio and communication without trailing wires, which keeps movement less restricted when setting up targets, carrying gear or moving between shooting positions. The low weight of 8.00 g helps reduce fatigue over long sessions, and the compact shape is easier to live with during all-day wear than heavier over-ear designs.

Battery endurance is another practical strength. With 13.00 h battery life, the CALIBER earbuds are suited to extended range days and repeated use without constant recharging. The platform is also built for outdoor use, with a waterproof and dust-tight construction that better suits wet weather, sweat and dusty firing lines. Altogether, this makes the CALIBER a strong fit for shooters who want hearing protection that stays compact, mobile and easy to integrate into regular training or hunting use.

About ISOtunes

Haven Technologies was founded in 2016 by leaders in consumer safety, and the company developed ISOtunes around hearing protection for both work and recreational use. Within that broader focus, the brand has built a strong presence in products for hunting and shooting, where users need protection that also supports awareness and communication.

ISOtunes Sport launched in 2021 with tactical earmuffs and earplugs, extending the brand into dedicated shooting applications. The lineup includes the DEFY and ADVANCE earmuff families as well as the CALIBER earbud line, with many models combining hearing protection and Bluetooth functionality. A core technology across the range is Tactical Sound Control, which amplifies environmental sounds while suppressing harmful noise. Haven Technologies is headquartered in Carmel, Indiana, United States.

Main Features

• Manufacturer: ISOtunes
• Electronic hearing protection: Yes
• Hearing protection type: Earplugs
• Connectivity: Bluetooth
• Battery life: 13.00 h
• Weight: 8.00 g
• Color: Green

Warranty

The ISOtunes Sport Caliber Earbuds include a 2-year warranty.

In the Box

• ISOtunes Sport CALIBER earbuds
• Variety pack of foam and silicone eartips
• USB-C charging cable
• Charging case with lanyard