Waterproof: IP-67 certified to 1 meter water submersion Cold Environment: Rated and Tested to function at -40°F (-40°C) Noise Cancelling Mic: Super-Cardioid Microphone provides superior speech and noise cancellation Hot Swap Battery: Hot-Swappable Battery provides continuous operating time Light with comfortable band design for long periods of wear This TOUGHBOOK certified Bluetooth mono headset is an ultra-durable, waterproof, shock-proof, freezer-rated, hands-free communication device. Advanced microphone noise cancellation provides exceptional operation in noisy environments and provides precise wireless voice recognition communication. The Mono Headband delivers clear audio to either Right or Left ear, and the Hot Swap Removable Battery Allows low battery to be changed without losing power, enabling multi-shift operations. Please note that the headset battery needs to be removed and charged separately using standalone battery charger (PCPE-MOD10BC). Replacement batteries can also b