Headphones Edifier BT STAX SPIRIT S3

Stax Spirit S3
80 hours for music play and a short 10-minute charge giving 11 hours of playtime
Hi-Res certified audio with cleaner sound, greater resolution, and better imaging, as same as true professional recording powered by a proprietary audio system
Most advanced Microprocessing system, making telephone communication like face-to-face communication
Enable a variety of advanced functionality-customized EQ settings, control settings, cushion sets, etc
The lightest weighted over-ear planer headphones for all-day use, and an additional set cooling-mesh ear-cushion for on-the-go or traveling use 

Bluetooth version: V5.2
Audio codecs: Qualcomm® aptX™ Adaptive,
Qualcomm® aptX™ HD, Qualcomm® aptX™, SBC
Driver unit: 89mm*70mm Planar Magnetic Driver
Playtime: 80hrs
Charging time: 1.5 hours
Charging port: USB-TypeC
Battery capacity: 1500mAh
Input: 5V/1.5A
Mircophones: 1
Microphone Type / Size: MEMS / 3.50X2.65X0.98mm
Microphone Sensitivity: -37dBFS±1dBFS
Frequency response: 10Hz~40KHz
Sound pressure level: 94±3dB SPL (A)
Impedance: 24Ω
Weight: 329g
Dimension (L x W x H mm): 208x110x255mm