This Boytone BT-56UM UHF wireless microphone system with frequency synthesized technology to provide highly stable adjustable frequencies from 470 – 580MHz and in total of 120 digital channels for interference-free operation minimum dropouts and popping noise and easy pair up when synchronize receiver and transmitter. Metal Cordless and Metal Base Rugged metal construction for wireless mic receiver and handheld mic. Premium card dynamic cartridge designed for clear robust optimal true sound which makes this system ideal for DJ professional band performance interview party karaoke conference and church excellent high-fidelity audio. 196+ ft. typical operating range — up to 300+ ft. line-of-sight Both the receiver and the mic has a power ON / OFF switch and the receiver has LED status signal indicator light and dual independent antenna. Two XLR outputs jack for professional power adapter (110-240 Volt) aluminum carrying cases Genuine UHF wireless microphone system 120 frequencies adjustable for each channel Operating range: 196 t0 260 feet (60 t0 80) meters Frequency: 480MHz‐570MHz Two handheld wireless dynamic microphone system Detachable Rubber Antenna Power Switch turn on/off Transmitter Digital screen IR Window Metal case receiver Microphone aluminum casing Aluminum carrying case Construction of high quality components of the receiver handheld microphone Simply connect the to the receiver audio Mixer amplifier or speaker Power adapter: 100‐240 V 50 Hz Battery microphones allow artists to have maximum freedom of movement on stage Implemented with detachable dual antennas to maximize the power of the wireless signal and guarantee the stability of the signal The volume adjustment knobs on the receiver allow you to adjust the volumes of the two microphones separately