Quick overview from the supplier:
Edifier Stax Spirit S3 black / Bluetooth Over-ear headphones, 89mm*70mm Planar Magnetic Driver, Hi-Res, BT V5.2, AAC, Qualcomm® aptX™ Adaptive, Qualcomm® aptX™ HD, Snapdragon Sound™, Frequency response 20 Hz-40 kHz, Microphone, On-ear controls, 1500mAh, Playtime 80hrs
