Portable size Built-in bluetooth RF wireless module Metal cabinet,rechargeable battery Support iPhone,ipod,mobile ... Selling Point1.Aluminium-Aloy fashion design2.Portable, hanging portable design3.Bluetooth wireless audio transmission4.ariety of classic color for choice5.With phone ... handsfree Selling Point1.Bluetooth VersionV 2.02.Frequency 2.402-2.480GHz3.Max ...