The battery onboard lasts nearly twelve several hours. Not the best from the list, but perfect for a complete day of listening �?check out the Tribit XSound Plus 2 In order for you anything with longer battery life to the same type of cost (however It can be bulkier). https://www.bluetoothspeaker.top/high-quality-wireless-charging-white-noise-bluetooth-speaker-with-time-display/