.Unit Size: 60mm(L) x 60mm(W) x 53mm(H)

.Material: Chrome plating heavy metal

.Frequency: 2.4-2.48GHz

.Bluetooth version:  V3.0+EDR

.Working time: Up to 4hours 

. Battery: 500MAH with 3H play

. Surport: BT play+HF Call+Micro SD+FM Radio

.Volume adjustment by switch knob