The battery onboard lasts around twelve hrs. Not the best within the list, but ideal for a complete working day of listening �?check out the Tribit XSound Moreover 2 If you prefer a little something with longer battery life to the same style of cost (though It is bulkier). https://www.bluetoothspeaker.top/super-bass-bluetooth-speaker-with-multiple-sounds-features-for-home-audio-system/