ISOtunes Caliber + bachmaier® plugs


The ISOtunes SPORT CALIBER hearing protection is specifically designed for hunters and shooters, allowing wireless connectivity with various devices. Earbuds for listening to music or making phone calls when desired – amplification like a hearing aid when it's beneficial – and hearing protection precisely when needed. Because every ear is unique, we offer custom bachmaier® plugs as an optional upgrade to the standard ear tips. They provide the ideal solution for optimized wearing comfort in the ear.

// Noise reduction rating 32 dB SNR
// SafeMax™ technology (limited volume to 85 dB) 
// Dust, sweat, and waterproof to IP67 standards 
// Bluetooth 5.2
// Tactical Sound Control™
// Up to 13 hours of battery life Akkulaufzeit

The unit price is equal to the set price.

Price is visible after Login.

The freedom you seek. The protection you need.

The ISOtunes SPORT CALIBER, an ultimate true wireless Bluetooth hearing protection, is specifically designed for hunters and shooters who require hearing enhancement for improved performance and safety combined with electronic hearing protection. The Tactical Sound Control™ (TSC) technology enhances hearing up to eight times while simultaneously protecting against extreme impulse noise in less than two milliseconds. The sound level-dependent technology actively passes natural, safe sounds through the product while suppressing harmful gunshot noises. TSC™ enables hunters and shooters to communicate, hear instructions or calls, and perceive wildlife. The SafeMax™ technology limits the volume to a safe 85 dB. The battery life lasts up to 13 hours on a single charge.




13 h runtime, 60 h standby


EN 352-2 PPE | Protection class IP67



Hunting | Shooting sports

MATERIAL (plugs)

soft (silicone | coated)


Bluetooth 5.2 function for dual connection over distances of up to 10 meters.


+ Tactical Sound Control™ technology provides level-dependent protection to enhance safety and situational awareness.

+ SafeMax™ technologc delivers exceptional quality and limits the output volume of connected devices to 85 dB.


+ Cord

+ Color marking

+ Custom engraving


ISOtunes SPORT CALIBER | bachmaier® plugs | Storage case with charging function | Charging cable | User manual




for sensitive ears, high seal, soft, resistant

40 Shore A | 60 Shore A*
*only available with BTE earmolds.

Regulation (EU) 2017/745-certified

As flexible as rubber.

Thanks to state-of-the-art cross-linking methods, even thin-walled earmolds can be easily processed from our silicone material. The molecular structure of the silicone guarantees high tear resistance and excellent dimensional stability. The high resistance to chemicals and environmental influences such as UV light, dirt, sweat or creams make all silicone earmolds robust and easy to care for. Easy cleaning is supported by a water and dirt-repellent surface, which is created by the reduced surface tension. Our soft silicone is biocompatible and contains no plasticizers. This makes it not only skin-friendly, but also suitable for very sensitive ears. Thanks to the elastic, soft-flexible material properties, silicone earmolds are characterized by a high level of long-term wearing comfort. Available in two degrees of hardness and ten colors.



Customized with

Because every ear is unique, we offer custom-made bachmaier® plugs as an optional upgrade to the standard earplugs. They offer the ideal solution for a secure and comfortable fit as well as optimized wearing comfort in the ear.


Sound attenuation value 32 dB SNR, ISOtunes SafeMax™ (limited volume 85 dB)
Dust, sweat and waterproof to IP67
Bluetooth 5.2 function for dual connection over distances of up to 9 metres
Amplification of natural sounds and attenuation of shots with Tactical Sound Control™ 
Up to 13 hours of battery life + 2 additional full charges in the case

Do you have any questions?

We're available from Monday to Thursday from 08:30 to 16:30 and on Friday from 8:30 to 15:00 to help and advise you.

Send an e-mail
Customer Support
+49 (0) 8652 655320
WhatsApp Business Chat
+49 (0) 170 984 0291

"Your satisfaction is important to us. Don't hesitate to call or email us - we're just a call or click away and look forward to helping you."

Office & Support Team

quick order