DL manuals 66 Audio Headphone BTS User Manual 66 Audio BTS User Manual - page 4 12345678910111213141516 Page of 16 Go Download Print this page Bookmark us 4 1 LED indicator 2 Volume Up 3 Multifunction button 4 Next Track 5 Microphone 6 Volume Down 7 Previous Track 8 Micro USB charging port This image is for reference only. Please check the product for details. The BTS « ‹ Prev1234567Next › »