It is important to pair the headset with your Bluetooth mobile phone for first time use.
1). Ensure the headset is off.
2). Press and hold the MFB button (about 7-10 seconds) until LED blinks blue and red alternately.
3). Activate Bluetooth on your phone, and search new devices from your phone.
4). Once “Avantree Sacool Pro’’ found in search list, tap to connect it. (Some phones request pin code, enter pin code 0000 to pair)
Now your Sacool Pro is ready for use. Once paired and connected, the headset will be automatically connected to your phone whenever you turn the headset on, provided your phone is in range. If not, try default setting.