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
