To reset the unit to factory setting:
1. Power on the unit by pressing the on/off button for about one second.
2. Press the "Vol - " button and the "Bluetooth" button together for more than 7
3. The unit will display Red, Green, Blue light and go into power off stage, but with the
on/off light and the light symbol lighted up.
4. The unit is now reset to factory settings.
5. Switch the Pulse OFF by pressing the on/off button for about one second.
6. You can now turn your device back on and it will be reset to factory settings.