Parameters:
1.Technology: bluetooth 4.0
2.Radio frequency: 2.402-2.480GHz
3.Audio output: 35mW, <15mA
4.Transmission range: <10 m
5.Charging Power: input AC 110-240V; output DC 5V
6.Charging time: 2 hours,Talk time: 4 hours
7.Music play: 3 hours
8.Standby time: 120 hours
9.Wearing styles: In-Ear mini headphones
10.Battery: 50mA rechargeable lithium battery
11.Size: 30mm * 18mm * 15mm