Long-life rechargeable battery with up to fifty hrs of cordless sound and USB port for charging devices This optional charging cradle accessory (marketed separately) is the proper home for your Bose Portable Smart Speaker. Keep your speaker’s battery complete once you’re not using it �?or keep the music playing https://www.bluetoothspeaker.top/speaker-super-bass-led-light-wireless-waterproof-party-outdoor-speakers/