Catalog > Consumer Electronics > Computer Peripherals > Computer Accessories Bluetooth Wireless Headphone Blue Bluetooth Wireless Headphone Built-In Microphone I-DANCE HEADPHONE BT100CY HEADPHONE BLUETOOTH V2.1+EDR EDITION FREQ:20Hz-20KHz IMPEDANCE:32Ohm 89db 10M RANGE BUILT-IN MICROPHONE BLUE Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Earphone Frequency : 20Hz~20KHzImpedance : 32OhmSensitivity : 89dBBluetooth : V2.1+EDRCable : 10mColor : Blue