All-day safety, focus, and performance. 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 the firearm enthusiast seeking the next generation of hearing protection. 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 Technolog y 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 ADVANCE Bluetooth hearing protector 4 pairs of TRILOGY eartips (XS, S, M, L) One pair of triple flange eartips Micro USB charging cable Carrying case