Long-life rechargeable battery with as many as 50 hours of cordless sound and USB port for charging devices This speaker delivers lush sounds in a very compact size, is extremely portable, charges on the wireless pad, and integrates with other Sonos speakers seamlessly No See all our test success https://www.bluetoothspeaker.top/best-selling-led-speakers-stereo-bass-indoor-subwoofer-portable-wireless-rgb-speakers/