Q: How to control media?
A: Scroll and hold up/down the Multi functional button to increase/decrease the volume level respectively.
Scroll once up/down the Multi functional button to select previous/next song respectively.
Q: Does the headphone have call function?
Single press the Call button (below right speaker) to answer/hang up incoming calls.
Press and hold the Call button (below right speaker) to reject an incoming call.
Q: What is the charging voltage?
A: DC 5V with micro USB cable.