USB port (for U-disk playback), TF/microSD card slot, 3.5mm AUX input/headphone jack, and a Micro-USB charging port. Buttons:

: The WS-1958BT remembers up to 8 previously paired devices. To clear the pairing list, press and hold Play/Pause + Mode simultaneously for 5 seconds.

Turn on the speaker; it defaults to Bluetooth mode (indicated by flashing lights or a sound). Enable Bluetooth on your phone and search for " " or similar.