The headphones are very comfortable to wear, they do not move even when doing sports, thanks to the support on the neck The bluetooth hooks up very quickly to the phone, the reproduced sound is of good quality with Surround and Reduction of Noise. The ability to adjust the volume directly to the headphones is very convenient.
Sources selectable by the M key: - Source from Bluetooth - SD Card slot for MP3 ( not included) Key for quick call to the last telephone number
Bluetooth 4.2 Chip - Multipoint for 2 Phones 120mAh battery for a duration of 6-8 hours in playback Full charge time 1.5 hours. StandBy 170-200 hours CVC6.0 noise reduction system Response frequency 10/20000 Hz