1. Make sure the Bluetooth headset is turned off;
2, long press the multi-function key of the Bluetooth headset (about 6-7 seconds), the middle will enter until the Bluetooth indicator into the red, blue two colors alternately flashing state (or the indicator light is steady on, depending on the different brands of headphones), at this time, the Bluetooth headset is in the pairing state;
3. Turn on the Bluetooth function of the mobile phone to search for the model of the Bluetooth headset for pairing and connection (default pin code 0000 or 1234).