Case iOS Operating procedure
1. Prese "Setting" on your smart device which cooperate to αble by Bluetooth
2. Tap the "Bluetooth"
3. If Bluetooth turn off, you need to turn on Bluetooth function by sliding the circle from left to right
4. Tap the i mark which is right to device name for canceling the paring
5. Tap the "Forget This Device"
6.Tap "Forget This Device" at the bottom of the screen to complete canceling when you do 5..
Case Android Operating procedure
1. Prese "Setting" on your smart device which cooperation to αble by Bluetooth
2. Tap "Wireless and network"
3. Make sure that "Bluetooth" is turned on, then tap "Bluetooth Settings".
4. Tap “Registered device list”.
5. Long press “αble Bluetooth”.
6. Tap "Delete", then tap "Select 1 Delete".
7. When the confirmation screen is displayed, tap "Yes". The cancel is completed.