YH-863B UHF Wireless Stereo Headphone with 864MHz ISM Band

1)UHF wireless stereo headphone with 864MHz ISM band
2)Operation distance: up to 100m with latest 3)UHF/RF wireless technology
4)Several headphones can be used simultaneously with one transmitter
5)Built-in 40mm Mylar speaker
6)Auto-mute and auto tuning functions
7)Active noise reduction system for crystal clear sound
8)Double PLL system for ultimate frequency stability
9)System: UHF/RF
10)Carrier frequency:
11)For Europe: 863.5, 864 and 864.5MHz
12)Modulation: FM
13)Mode: stereo
14)S/N ratio: >70dB
15)Channel separation: >35dB
16)Distortion:

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