True Wireless Stereo Earbuds in ear 

Quad Mic ENC deep treble sound bass 

Portable design IPX5 waterproof bluetooth headphone

Bluetooth Version: Bluetooth 5.4                        
Driver units: 13 mm   Impedance:  32 ohms
Frequency response: 20~20K Hz                                                                       

Sensitivity:112±3dB S.P.L at 1KHZ
Range: Up to 12 m                                                                         

Earphone Battery: 3.7V, 40 mAh
Charging case Battery: 3.7V, 400 mAh
Charging time: About 2 hours (DC 5V)                              

Charge port: Type C
Talk time: Up to 7 hours                                 

Standby time: 200 hrs