Electronic hearing protection and two-way communications headset - 18dB NRR Rating - Intelligent circuitry amplifies speech and other small sounds up to 18dB while automatically cutting out loud noises over 82dB - Dual microphones provide 360 degree amplification and directional awareness of sound sources - Hearing protection function works with or without connection to radio Mil-standard ¼” Nexus TP-120 plug - Standard Civilian / Commercial wiring (can be converted to Military / NATO-US wiring with ArmorMason Wiring Adapter, Amazon ASIN: B07KJYV77R ) - Compatible with our full line of PTT systems and radio accessories - Rail Headset Adapters for direct attachment to rail equipped tactical helmets - Adjustable boom mic - Dual-function push button adjustable volume controls (hold both volume up and volume down buttons simultaneously for power on/off control) - Splashproof controls and battery compartments - Powered by 2 x AA size batteries (Not Included). - Made by ArmorMason