wireless connection (TWS) realizes wireless stereo, left and right channel separation, HIFI sound effects, and both left and right ears have complete Bluetooth function and can be used alone.
 Model : pro 6 
Bluetooth version : V5. 0+ EDR Transmission 
Distance : 6-10 meters 
Talk time : 2-3 hours 
Headphone battery: 100 million other batteries 55101225 mAh Storage battery : 602030 plus protection board 300 mAh speaker: F13 brass ring speaker 
charging port : type-c