Enable Bluetooth on your phone and select "S2" from the list of available devices. Playback Controls: Play/Pause: Short press the [Play/Pause] button.
Long press the Light Adjustment button to cycle through three brightness levels (100%, 70%, 20%) or to turn off the display. Additional Features Yayusi S2 Bluetooth Speaker User Manual - device.report Yayusi S2 Manual Pdf
Before first use, ensure the device is fully charged using the included USB cable. The built-in typically provides up to 8 hours of playtime . Enable Bluetooth on your phone and select "S2"