This JENSEN® Bluetooth® portable speaker is a safe way to take phone calls while driving - it"s a hands-free speakerphone via any Bluetooth-enabled device, such as your cellphone! Supports A2DP, HFP and AVRCP. Features a built-in microphone for use when making phone calls. Output: 2W RMS. Power: built-in rechargeable battery with USB Cable (included) or 120V AC Adaptor (Optional). A great product to have while traveling!