Power up ChatBit Docking Station (the square unit)
Place the headset on the Docking Station.
You will see the red light on the headset when you place it properly.
Pick up the headset, press the button right above the mic (in the red square) as per snapshot below.
Search Bluetooth on your phone > Start Scan > look for Cb9BT > Press pairing > if it ask for the pin, enter 0000 > Connect.
Adjust the volume as you require. Volume button will be above bluetooth pairing button.
When making/ answering calls, press answer button first and then pick up the headset from docking station.