User Manual
Bluetooth audio function operation
Model：S91, S90
FCC ID:2ADTF-S19
1. Start up: start up manually - turn the toggle switch to the on direction, and the blue light will
flash with a "power on" tone.
2. Enter the pairing state: after the toggle switch is turned on, it will enter the pairing mode for
about 2 seconds, accompanied by the "Bluetooth mode." prompt tone, and the sound blue light
will flash.
3. Connection status with the mobile phone: turn on the "settings Bluetooth" in the mobile phone
- click "T90" to connect to the audio machine, then the audio
The blinking blue light of will change to a long blue light accompanied by a "Bluetooth is
connected" tone.
4. Disconnected from the mobile phone: after the mobile phone is disconnected from the audio
machine, the blue light of the audio changes to flash, accompanied by a "disconnected" tone.
5. Music play / pause: connect with the mobile phone and open the player. Briefly press the key
once to play the music. Repeat the operation to pause the song. When playing the music, the blue
light will be on
Blink once in 1 second, music pause blue light is on for a long time
6. Play the next song: when the audio system briefly presses the key once while playing the song,
the next song in the mobile phone will be played automatically.
7. Play the previous song: when the audio system briefly presses the key once while playing the
song, it will automatically play the previous song in the mobile phone.
8. Volume +: long press the key once when the audio is playing a song, the volume will be
increased. When the volume is maximum, the prompt sound "maximum volume".
9. Volume: long press the key once when the audio is playing a song, the playing volume will be
reduced. When the volume is minimum, the prompt "minimum volume" will sound
10. Answer the call: click the key in the call state, and the telegram number + you have call will
come from the call prompt tone.
11. Hang up: click the key in the call state.
12. Reject the incoming call: press and hold the key for 1 second under the status of incoming call.
13. Cancel dialing: click the key in dialing status.
14. Automatic back connection: after the audio is paired and connected with the mobile phone,
and the Bluetooth of the mobile phone is on, when the audio is turned off and turned on again,
the audio
Connect the mobile phone automatically; when the audio and mobile phone are out of the range
of signal distance, they will be disconnected