1. Auto pop-up window, the left and right ears can be switched freely, and the earphones automatically matched
2. Compatible with iOS/Android system (as long as the device has Bluetooth connection)
3. Each charging can listen music about 3.5 hours
4. 400mAh charging box can store power, 45 hours working time
5. One button control, automatic connection (double-ear listening, playback, power on/off function, automatic connection to Siri) with QI wireless charging function
6. 50mAh for single earphone
7. Music play: about 3-4h
8. Fast charging: about 40 minutes fully-charged.
