The main features of the wireless receiver: true diversity reception, using dual antennas, dual reception lines, pure automatic selection (True Diversity) receiving method, new single-channel digital automatic selection of fast and long-distance microphones, with ID number encryption, not easy to be interfered, no Can frequency change, automatically search for clean frequencies, self-set switch lock, intelligent feedback, self-set panel function lock, safe use, receiver channel has independent 2000 channels Adjustable panel display: 7-digit LED light shows RF/AF signal strength , LCD liquid crystal display, yellow-green when not turned on, basket color when in use, white when set. Automatically select signal, channel, frequency, transmitter battery power, receive sensitivity mute level and many other functions. Adopt unique CPU to control the switch machine, no matter what state the transmission or reception is in, there is no impact sound when the machine is switched on and off. Using professional secondary frequency conversion and multi-stage RF filtering technology, multiple sets of use do not interfere with each other, and the audio code and RF intensity are double static. Noise to eliminate interference. Transmitter locking mode to avoid error shutdown , channel 16, frequency spacing 25 kHz RF power at ANT 30 mW, -3 dB, modulation technique FM, modulation frequency offset 1 kHz NF ±24 kHz, maximum modulation frequency offset 1 kHz NF ±48 kHz, audio, audio frequency response ( at 1 kHz 60 Hz ... 18 kHz; -3dB, distortion at 1 kHz and typical < 0,9% (0,5%), S/N ratio ≥ 100 dB, working voltage 3 V, Power at rated current ≤ 150mA, standby ≤ 100 µA, battery 1.5V alkaline*2, use ≥ 8 hours, receiver technical data, frequency range: 530-580MHZ, 630-680MHZ, 740-790MHZ. True diversity bandwidth, 50MHZ, receiving frequency channel number 2000, frequency interval: 25KHZ, 1 IF frequency: 243.950MHZ oscillator frequency 233.250MHZ, 2 IF frequency: 10.7MHZ, modulation technology, wideband FM: modulation frequency offset, 24KHZ, 48KHZ maximum value, S/ N=80 dB < 10 µV (6 µV), S/N max > 110 dB Antenna 4x BNC 50 Ω NF section, output voltage 500mv, distortion at 1 kHz and typical < 1% (0.3 %) NF frequency response 50 Hz --18kHz; 3dB connector 6.35mm, separate AB connector XLR nominal voltage 12V DC, voltage range 11.5V-16V DC nominal current 650MA