It charges conveniently through a USB-C connection, making sure that you can easily recharge it even on the move. MP3 player - Simply store your favourite music being an MP3 on a memory card (TF, Micro SD) and use the loudspeaker as a jukebox or, alternatively, with Micro USB https://www.bluetoothspeaker.top/party-boombox-bluetooth-speaker-high-power-bluetooth-speaker-boombox/