Dual  Earbuds Dialing,

High Definition Stereo Sound， 

Comfortable In-Ear Design，

Built-in Control Buttons，

IPX4 Sweatproof.

Version: V5.0  JL

transmission frequency:2.4GHz

Earbud Battery: 40Mah each with IC

Charging box: 400mah , 

4times Recharging

Talk time: 2.5hrs

Standby time:150hrs

Charging time: 2hrs

Data interface: USB2.0

Speaker ：φ9mm /6u

Sensitive:105±3db

Input interface：USB stereo