A: 8-10 meters.
A: Pair the first device with ZEB-JOURNEY earphones.
Once the connection is complete, turn OFF the BT in the first device.
Now turn ON the BT of the second device and pair it with the earphone.
Once paired, simply turn ON the BT of the first device and it will automatically connect to the earphone.
Thus two devices would be now connected to the earphones.
A: +5V DC
A: When the earphones are connected to a smartphone, Press & hold the play/pause key for 2 secs to wake up the voice assistant of your smartphone.