mini Bluetooth earphone

specifications: Bluetooth: 4.1 wireless 

frequency: 2.402-2.480 GHZ 

Transmission distance: 10M 

battery: 50MA size: 28 * 16 * 15mm 

Charging power: AC 110-240V input

charging time: about 2 hours 

color: black, white, khaki, pink rose, gold 

package size: 5 * 5 * 2cm 

the package contains: 1 x Bluetooth Earphone