sg188Step 1: Refer to the following link and Enter Pairing Mode on the SG188.how to get SG188 into pairing mode Step 2: ConnectPair the Headphone to Bluetooth on YourReset if the sunglasses cannot connect properly with your device. First,Get SG188 into Bluetooth Pairing Mode Then,Four-click the button,you will hear 2 beep and LED shows solid Red&Blue