1. Power on / off:
1) Power on: When it is power off, long press the middle button for 1 second, blue light will be shiny, connecting automatically, if fail to connect, it will get to the pairing mode directly.
2) Power off: When it is power on, long press the middle button for 3 seconds, red light will be shiny.
2. Bluetooth Pairing:
1) Getting to the pairing mode when it is in power on (If it connects with the device which it has connected with last, you have to disconnect manually), red and blue LED flash alternately into the Bluetooth pairing state.
2) Searching for SO-02 on the phone, selecting and pairing.
3) If no phone is connected after 5 minutes, the Bluetooth pairing status will be turned off automatically.
3. When the Headset is lack of power, red LED flash slowly and alarm every 5 minutes accompanied by "low battery" tone
4. Calling State:
1) Answering the phone: When the headset is in the state of charge, call, pick up the headset.
2) When the headset is not in the charging state, short press the middle button to answer the phone.
3) Refused to answer the phone: Long press the middle button for 2 seconds.
4) Hanging up: Short press the middle button to hang up the call, or put back the charge directly can also hang up.
5) Redialing the last call: Standby or play music state, double-click the multi-function button, the headset will redial the phone number which called on the phone number.
6) Manual connecting: Headset and mobile phone disconnected, press the middle button, you can re-connected to the phone.
5. Playing music:
1) When standby, press the middle button or operate the music player on the phone
2) Play / Pause: Play music, long press the middle button, music pause, then press the play
6. One Headset Two Phones:
1) The first mobile phone connected with the headset, and then manually turn off the first mobile phone Bluetooth.
2) Re-start the Bluetooth pairing mode.
3) Open the second phone's Bluetooth and search for new equipment, according to normal operation and headset connection
4) Open the first mobile phone Bluetooth and connect the paired headphone device YTT manually.
5) Now two phones connect headphones completly.
7. Talking With Two Phones:
When you are answering a phone call, there is a second call, if you double-click the middle button, the second can be answered by you and the first call is also kept. Double-click the middle button again to continue with the first call and keep the second call.
Two phone calls can be changed and kept. If only click the middle button only, the current call will be cut off, switch to and another call automatically.
8. Start the phone voice assistant (The phone has voice assistant software)
In the connection state, long press the power button for 1 second and then release.