Headphones Edifier W600BT Light Blue

Bluetooth V5.1 ensures stable connection 40mm NdFeB driver delivers detailed and powerful sound Up to 30 hours audio playback Soft over-ear pads for all-day comfort Simple design for an elegant look and feel Connection with two Bluetooth devices simultaneously supported 3.5mm audio cable included for wired connection 

Bluetooth version V5.1
Audio codecs SBC
Driver unit Φ40mm NdFeB driver
Playback time about 30 hours
Charging time about 3 hours
Battery capacity 350mAh
Frequency response 20Hz-20kHz
Sound pressure level 96±3dBSPL
Impedance 32Ω
Charging port USB Type-C