1. First time to use headphones. Try to charge for about 2-4 hours, and then charge for 2 hours.

2. Click the Bluetooth settings in the phone settings and select "Open" to finish. This will turn on the Bluetooth support of the phone.

3. When the Bluetooth headset is turned off, press and hold the headset multifunction key MFB3 for more than 3 seconds, until the blue light on the headset lights up (1, note that it is always on, and it lights up all the time during pairing, without flashing, and some devices flash alternately in red and blue). At this point, the Bluetooth headset is already in a searchable state.

4. Open the Bluetooth option on your phone and search. After successfully searching for the headset, the name and model of the Bluetooth headset will be displayed in the list, and click OK.

5. Enter the password (usually 0000) on the mobile phone. Some of them don't have the password, and the earphone indicator flashes quickly, which means the pairing is successful.

6. Click on the Bluetooth headset name item: MOTOROLAHS850, open it and select Binding. When finished, the phone is connected to the Bluetooth headset. At this time, the mobile phone may have a "Ding Dong" prompt similar to connecting usb, and it may also have a similar prompt when turning off the Bluetooth headset, so it can be judged whether the Bluetooth headset and the mobile phone are normally connected.