Use features like digital mixers and USB ports for phone charging during your DJ sets. These is often game-changers through Dwell performances. MP3 player - Just store your favourite music as an MP3 on the memory card (TF, Micro SD) and use the loudspeaker for a jukebox or, alternatively, https://www.bluetoothspeaker.top/suction-cup-speaker-waterproof-shower-bluetooth-speaker-with-hands-free/