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  • Regular price $199.00
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The Freedom You Want. The Protection You Need.

CALIBER is a Bluetooth shooting earbud that packs a big punch in a little package. This electronic ear pro is completely dust, sweat, and waterproof and can run up to 13 hours without needing to be recharged. The completely cordless design allows you to move freely while Tactical Sound Control™ delivers amplified natural sound and gunshot noise reduction.


Backed by:

  • One Year Warranty (if it's our fault we fix it, no questions asked)
  • 30-day Money Back (you won't need this, but just in case)
  • Friendly, US based customer service team



Tactical Sound Control

TSC™ level-dependent technology allows safe sounds to actively pass through the product while blocking harmful gunshot noise. TSC™ protects hunters and shooters while giving them the ability to communicate, hear range commands, and listen for game.

25 dB of Noise Reduction

Most gunshots will register between 150 - 170 decibels. At those levels hearing damage can occur quickly. Combat those dangerous noise levels and shoot safely all day long.

IP67 Durability

Tough on gear? Now you don't need to worry. CALIBER is completely waterproof and dust-tight. Plus all ISOtunes Sport products are backed by a 1-year warranty.


 Full Product Details

• Tactical Sound Control™ Technology enhances your hearing by 8x while protecting you from high-impact noises in under 2 milliseconds.

• True Wireless Design

• 25 NRR tested and approved to ANSI s3. 19-1974.

• IP67 Durability for dust, sweat, and waterproof protection.

• Up to 13 hour battery life with 2 full additional charges stored in the rechargeable case.

• Automatic Power Off after 2 hours without Bluetooth connection for battery conservation.

• Bluetooth 5.2 connects devices 30+ feet.

• SafeMax™ Technology limits volume output to 85 dB for all-day, damage-free listening.

• Background Noise-Reducing Microphone for clear communication in loud environments.


ISOtunes Sport CALIBER comes with three pairs of ISOtunes TRILOGY Short Eartips (S, M, L), three pairs of ISOtunes TRILOGY Tall Eartips (S,M,L), 1 pair of silicone eartips, a charging case, charging case lanyard, and USB-C charging cord.


Warranty & Guarantee

Warranty: All ISOtunes® Sport products come with a 1-year warranty against defects in material and workmanship. The warranty does not cover damage by misuse, abuse or unauthorized modifications. We will provide a free exchange for customers who experience defective products within 12 months of purchase.*

Guarantee: Your satisfaction is guaranteed with a 30-day money back promise. If you are not completely satisfied with your product, please contact us within 30 days of purchase and we will prove a full refund*.

*Apparel & Merchandise items are excluded from warranty & money back guarantee. Only items that have been purchased directly from can be returned. ISOtunes Sport products purchased through other retailers must be returned in accordance with their respective returns and refunds policy.