Brought to you by CAMARILLO TRADERS specialists in new, used & antique arms, collectible militaria and rustic ephemera. ISO Tunes Sport Advance Tactical Hearing Protection Green (IT-36). ADVANCE BT is the first of its kind; an in-ear tactical hearing protector that provides awareness and active gunshot muting. ADVANCE BT is seriously comfortable and has bluetooth for accessibility. Designed to be the hearing protection you actually want to wear. Tactical Sound ControlT Technology enhances your hearing up to 8x while protecting you from high-impact noises in under 2 milliseconds. Lightweight Design at just 23.25 grams. Rechargeable Battery provides up to 10 hrs of Bluetooth battery life or 20 hrs of TSC battery life. Automatic Power Off after 2 hours without Bluetooth connection for battery conservation. SafeMaxT Technology limits volume output to 85 dB for all-day, damage-free listening. Bluetooth 5.1 connects, and dual-connects, devices up to 30 feet. IP67 Durability for dust, water, and sweat proof protection. 26 NRR tested and approved to ANSI s3.19-1974. Noise-Isolating Microphone for clear communication in loud environments ISOtunes Sport ADVANCE BT comes with 4 pairs of TRILOGYT eartips (XS, S, M, L), 1 pair of triple flange eartips, a micro USB charging cable, and a carrying case. Camarillo Traders 1211 Flynn Road Unit 108 Camarillo CA 93012.