The battery onboard lasts as many as 12 hours. Not the best within the list, but ideal for a full working day of listening �?check out the Tribit XSound Plus 2 In order for you some thing with longer battery life with the same kind of cost (while It https://www.bluetoothspeaker.top/outdoor-speaker-waterproof-ipx6-inalambrico-bluetooths-speaker-portable/