Shanling UP4 - Simultaneously Connecting Two Devices; Next Track; Previous Track; Play;Pause

3. Power on the Shanling UP4 and it will automatically re-connect to the
second device. Turn on Bluetooth on the first device and connect it
manually with the Shanling UP4. Now both devices are connected to
the Shanling UP4 simultaneously.
Next Track
Quickly press the multifunctional button twice to jump to the next track.
Previous Track
Quickly press the multifunctional button three times to jump to the
previous track.
Play / Pause
Press the multifunctional button once to pause or resume playback.
Answering Call
If the Shanling UP4 is connected to the device when a new call comes in,
press the multifunctional button once to answer the incoming call.
Simultaneously Connecting Two Devices
1. After pairing the Shanling UP4 with the fist device (indicator will flash
blue light every 5 seconds), power off the Shanling UP4 and turn off
Bluetooth on the first device.
2. Pair the Shanling UP4 with the second device. After pairing is
successful (indicator will flash blue light every 5 seconds), power off
the Shanling UP4 again.