You can listen to stereo music by Bluetooth wireless stereo. The Bluetooth audio device must be paired with the 3S by following the “Bluetooth Stereo Device Pairing” instructions. The 3S supports the Audio/Video Remote Control Profile (AVRCP), so if your Bluetooth audio device also supports
the AVRCP, you can use the 3S to remotely control music playback. So, you can not only adjust the volume but also use the functions such as play, pause, track forward and track backward.
• To adjust the volume, press the (+) Button or the (–) Button.
• To play or pause music, press and hold the (+) Button for 1 second
until you hear a double beep.
• To track forward or track back, press and hold the (+) Button or the (–)
Button for 2 seconds until you hear a double beep.