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