The battery onboard lasts around 12 hours. Not the best from the list, but ideal for a full working day of listening �?check out the Tribit XSound Plus 2 If you'd like some thing with longer battery life to the same sort of cost (although It truly is bulkier). https://www.bluetoothspeaker.top/led-light-wireless-outdoor-bluetooth-speaker-party-music-box-usb-stereo-sound-music/