Dual Channel Reception: Features dual channel and dual antenna for reliable signal reception.High-Fidelity Sound: Intelligent vocal optimization, high-fidelity sound quality, and effective howling elimination clear audio delivery.Adjustable UHF Band: Frequency range of UHF 635-695MHz, adjustable to avoid interference in complex frequency environments.Construction: Full metal handheld microphones are drop- and scratch-, enhancing .Clear LCD Displays: Both the receiver and transmitter have LCD displays for easy monitoring of working status.Wide Application: Ideal for conferences, speeches, karaoke, and more.Frequency Range: UHF 635-695MHzModulation: Wideband FMEffective Distance: 50MHzChannels: 2*100Channel Spacing: 300KHzFrequency Stability: 0.005%Dynamic Range: 100dBMax Frequency Deviation: 45KHzAudio Response: 80Hz-18KHz (3dB)Signal-to-Noise Ratio: 105dBDistortion: 0.5%Operating Temperature: -10 to 50Receiver:Mode: Secondary frequency conversion superheterodyneIF Frequencies: 110MHz and 10.7MHzWireless Interface: BNC/50Sensitivity: 12dBV (80dBS)Max Output Level: +10dBVTransmitter:Antenna Type: 1/4 wavelength whip and built-in helicalOutput Power: High 30Mw, Low 3MwSpurious Suppression: -60dBBattery Life: Over 5 hours at 30mW, over 8 hours at 3mWColour:blackMaterial:MetalPlug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on.voltage: AC100-240VPackage Contents:1 * Receiver2 * MicrophonesOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.