Protect your hearing from exposure to noise while operating power tools, machinery or loud equipment. Built in Bluetooth connectivity and microphone allow you to stream your music and receiving calls wirelessly. Comes with AM/FM radio Adjustable padded headband and double layer soft foam Rechargeable li-thium battery with charging cable Comfortable headband with soft cusions around the ears Hearing protector class 5 tested to AS/NZS 1270 Continuous working time is approximately 10 hours. Standby time is 8~10 days Included Manual Charging cable