UHF/RF Stereo cordless Headphone

Features: * UHF stereo wireless headphone with 864MHz/915MHz ISM band * Light weight design for comfortable wearing * Operation distance up to 100 meters with latest UHF/RF wireless technology * Several headphones can be used simultaneously with one transmitter * Built-in 40mm mylar speaker * Auto mute and auto tuning function available for headphone * Active noise reduction system for crystal clear sound * Double PLL system for ultimate frequency stability Specifications: 1) System: UHF/RF 2) Carrier frequency: a) For Europe: 863.5, 864, 864.5MHz b) For USA: 914, 914.5, 915MHz 3) Modulation: FM 4) Mode: stereo 5) Transmit power: ≤10mW 6) S/N ratio: ≥75dB 7) Channel separation: >35dB 8) Distortion: <1% 9) Frequency response: 30 - 20,000Hz 10) Power supply of transmitter: DC12V 150mAh 11) Power supply of headphone: 2 AAA batteries