Suit: for all bluetooth device
     Technology: 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: 3* 1.8* 1.5cm

    Weight: about 8.5g