Features: 1. Single - Channel dual antenna to receive signals, each channel has 100 optional channels; 2.UHF band transmission signal, the frequency range of 710-830MHz, between the signal to 250KHz step; 3. Large chassis, equipped with semi-U aluminum metal panel; 4. Receiver and transmitter are configured VA LCD display, working status at a glance; 5. Receiver on the back of the configuration of two rubber antenna, enhance the received signal and highlight the high-end appearance; 6. Set up a 6.3 output and a balanced output, suitable for connecting a variety of external devices; 7. Microphone power consumption of 130mA, the use of 1.5V AA * 2 rechargeable battery-powered, continuous use for more than 6 hours; 8. Use distance: about 100 meters; 9. Reception can use a key to prevent the whistle function to enhance the sound pressure, singing and speech when it is easier to enter the microphone; 10. Audio and data using 32bit encrypted transmission and independent ID code, effectively prevent crosstalk and interference; 11. Transmitter and receiver using 8bit encryption infrared transmission synchronization; 12. The receiver can observe the transmitter’s battery operating state at a glance; 13. Use high-fidelity moving coil microphone, so that your voice more beautiful. Host performance parameters: Frequency range: UHF 710MHz-830MHz Frequency stability: 10PPM Occupied bandwidth: ± 150KHz Transmission rate: 204.8Ksps Modulation: DQPSK Signal to noise ratio:> 105dB Distortion: <0.5 %@1KHz Receiver sensitivity: -105dBM Frequency response: 30Hz-20KHz Power supply: DC 12V-16V Transmitter performance parameters: Power supply: DC 3V (1.5V AA * 2) Microphone power consumption: 130mA Transmitting power: 10mW Dynamic range:> 100dB Type: moving coil type Frequency response: 30Hz-20KHz