Bluetooth version…upgraded from 5.0 to 5.2
Communication : true wireless
Control button : smart touch
Microphone : yes
Working distance :15 meters
Play time : 6 hours
Waterproof grade :waterproof, sweatproof
Functions : for call ..music, video, bluetooth earphone, sports
Frequency response range : from 20-2000 Hz
Charging method : LED digital display
Charging case capacity : 500 mAh
Headphones ..battery capacity 50 mAh
Package… usb charging cable, 3 replaceable ear cap
