1. System power on.2. BT LED (blue) is slow blinking while it is paring or connecting.3. Play power on tone within 1 second4. If Battery is Low and fast blink Battery LED5. Reconnect recent BT devices within 3 sec. Enter pairing mode if there is nohistory.6. BT LED (blue) is constant on If it is connected to BT device7. Enable Charge out if there is loaded.