The rechargeable batteries will give you around 25 several hours of play time for every juice-up. It's also possible to us your Marshall to reply, decline, and close calls. Lame. Not your fault however, they put the "Phone" button appropriate on there next to the speaker's bass and treble https://www.bluetoothspeaker.top/flashing-light-speaker-music-wireless-stereo-outdoor-battery-plastic-bluetooth-speaker-rgb/