ADVANCE is the first of its kind; an in-ear tactical hearing protector that provides awareness and active gunshot noise attenuation. ADVANCE is seriously comfortable and surprisingly lightweight, perfect for a firearm enthusiast Product Details Tactical Sound Control 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 connection to any device Automatic Power Off after 2 hours without Bluetooth connection for battery conservation SafeMax Technology limits volume output to 85 dB for all-day, damage-free listening Bluetooth 5 0 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 aptX high-fidelity sound with codec support Materials and Fabric Plastic with foam eartips We deliver ISOtunes Sport ADVANCE Ear Defenders worldwide.We specialise in shipping almost anywhere in the world securely at competitive prices - across UK, US, Canada, Ireland, New Zealand, Europe - securely and fast at competitive prices