Wireless Version : 5.0
Earbuds dimensions : 19 x 39 x 22mm  2
Net Weight: 4.0g x 2 
Wireless Working Range: 10M 
Speaker: 12mm
Speaker frequency : 100Hz ~ 10KHz
Input Voltage / current : 5v DC / 1A
Play Time: 3.5 hours 
Talk Time: 3.5 hours
Carging Case Battery : 400mAh