Uhf/rf Headphone - 914/915 Mhz Frequency, Stereo Mode | Advanced Active Noise Cancelling, 100m Range, Comfortable Long-wear Design

Following are the main specifications of Headphone:
1.System:UHF/RF
2.Carrier frequancy:914/914.5/915 MHz
3.Modulation: FM
4.Mode:stereo
5.Output power:<10 mW
6.S/N ratio:a Y75dB
7.Channel separation:>50dB
8.Distortion:<1%
9.Frequency response:30 - 20,000Hz
10.Power supply of transmitter:DC12V 150mA
11.Power supply of headphone:2*AAA (Optional rechargeable battery)

Feature:
1.Grand shape and humanizing design,comfortable to long time wear.
2.The range up to 100 meters.
3.Advanced PLL system to make sure working frequency ultimate stability.
4.Active noise cancelling system for crystal clear sound.
5.Suitable for all types of modern music,like TV,DVD,MP3 etc
6.Three selectable channels
7.Automatic search function.(automatic search and set to transmitter once it's turned on)