HF audio quality. Real wireless stereo. Wearable and comfortable. Type-C is the specification. Version 5.3 of the wireless connection. > 10 m is the wireless transmission distance. 35 mAh is the battery's capacity. 400mAh is the charging case's battery capacity. About six hours of music time. Talking time: roughly three hours. It takes one hour to charge. Time on standby: 720 hours. 5V=1A is the input.