Play, pause call recevied end, volume control, next previous music track,Built-in rechargeable battery, 3.5mm Aux, Micro Sd card. Bluetooth protocol:version 4.0 +EDR.Talking Time:upto 4 Hours.Standby Time up to 100 Hours.Speaker sensibility:103+3db.Speaker Diameter: 40mm.Frequency:20Hz-20Khz.Over-ear design that covers the ears completely providing exceptional comfort and even better noise isolation in order to forget you are wearing them Support music, voice control, call function, Micro sd card music play, power display, multipoint connection If you prefer to use the cable to play music or you don't want to use your headphones battery, plug them into the device using the audio cable The attention to detail makes the difference and makes your headphones trendy Self-adjusting headband, ultra-lightweight design and 180 degree folding system that makes them ergonomic to listen to your music for hours Flawless design and mastery of sound - carefully and precisely designed makes headphone appear to be stylish and sturdy, perfectly processed aluminium plats perfects the look of a premium headphone hence delivering unimaginable sound