hi-Fun hi-Sport Manuel D'instructions page 13

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Left side
1 - Earhook
2 - Volume down / Previous song
3 - Volume up / Next song
4 - MF Button (Multifunction Button)
5 - Speaker
12 - Sliding Cable Cinch
Right side
6 - NFC Tag
7 - Microphone 1
8 - LED light
9 - Microphone 2
10 - On / Off switch
11 - Charging contact (Micro USB)
Users manual