1. This device has built-in batteries. When the device is not in use, but the
battery is low, the red ring light will flicker. When the device is in use and the
battery is low, the red ring light will intermittently flicker 3 times. Please connect
the power supply in these situations. When the device is fully charged, the green
light at the bottom of the ring will flash 3 times.
2. When the device is plugged in via USB to the power supply, or when the ON/
OFF button is long pressed, the green ring light will flicker. This indicates that the
device is ready to connect. When connection is successful, the ring will stay
green. Pressing the ON/OFF button now will turn the device off.
Note: In standby mode, the device will hold for 20 minutes before automatically
shutting down.