Parameters:

echnology: bluetooth 4.0

Radio frequency: 2.402-2.480GHz 

Audio output: 35mW, <15mA

Transmission range: <10 m

Charging Power: input AC 110-240V;  output DC 5V

Charging time: 2 hours 

Talk time: 4 hours

Music play: 3 hours

Standby time: 120 hours 

Wearing styles: In-Ear mini headphones 

Battery: 50mA rechargeable lithium battery

Size: 30mm * 18mm * 15mm

Weight: about 8.5g

Package:

1 x phone

1 x manual

1 x charging cable (without charger)