Product Description

Bluetooth Version: V5.0 
Dual Earbuds Dialing,
Stereo Sound， 
Comfortable In-Ear Design，
Built-in Control Buttons，
IPX4 Sweatproof

Speaker ：φ9mm 
Earbud Battery: 40Mah each
Charging box: 400mah , 
4times Recharging
Talk time: 1.5hrs
Standby time:150hrs
Charging time: 2hrs