Model No :Iball WR621 Cordless Headset (With FM Radio)  

Features: 
Cordless FM/RF technology
360 degree wide angle clear signal reception
30 Meters open radius cordless range
Built-in FM Radio with digital tuning
Can be connected to PC, Laptop, DVD Players, Music Systems, MP3 Players, Disc-man, TV etc.

Cordless Technology:  FM/RF Cordless technology

Effective Cordless Range : Upto 30 meters

Working Angle : 360 Degrees

Transmission Frequency : 87.5 ~ 88.0MHz

Transmission Channels : 2 Channels

Radio Tuner : Built-in FM tuner

Headphone Power Source : 2 x AAA Alkaline batteries

Transmitter / Receiver Power Source : DC 4.5V / 100mA or 2 x AAA Alkaline batteries

Headphone Driver Unit : 40.0mm

Headphone Frequency Response : 20Hz ~ 20kHz

Headphone Sensitivity : 110.0dB ? 3dB (at 1KHz)

Headphone Impedance : 32 ohm

Controls : Volume control with on/off, Reset, Tuning

Input/Output Plugs : 3.5 mm plug

Bundled Accessories : DC 4.5V / 100mA Power adapter

One year warranty