User's Manual
4. Connect the USB cable port to the power adapter, power bank
or your PC.
Notes:
Remote Transmitter: Fully charged, the Green LE D indicator will
become solid.
Receiver Collar: Fully charged, the Blue LE D indicator will
become solid.
The charging time takes 2~3 hours, Red indicator on Remote
Transmitter and Blue indicator on Receiver Collar will blink
slowly when charging.