XTUGA U-F4600 Professional 4-Channel UHF Wireless Microphone System with 4 Handheld Microphone 1. UHF Microphone System: XTUGA UF4600 4 Channel Wireless Microphone System Using UHF fixed high-frequency line design, avoid the frequency of interference easily. Deliver clear, robust, optimal true sound. Perfect used for parties, church, DJ, weddings, outdoor or indoor stage performances etc. 2. Longe Distance: Up to 164ft long range in wide open space line of sight. Upgraded wireless signal acquisition,2 antennas installed on the back of the receiver to enhance the received signal, ensuring high frequency stability and accuracy. Fix frequency 523.80mhz,555.80mhz,561.40mhz,579.30mhz. 3. Reliable Performance: Lightweight mini receiver with 4 handheld wireless mics. LED lights above the receiver enable users visualize the pair up between receiver and transmitters. Brushed metal design receiver for optimum aesthetics and durable long life. 4. Wide Compatibility: Easy setup wireless microphone system and convenient operation. The microphone will automatically and quickly synchronizes to the working channel of the receiver after power on. You can also connect to your amplifier, mixer, or other PA system. Features: 1. UHF frequency line design, avoid the frequency of interference easily. Deliver clear, robust, optimal true sound. 2. Up to 164ft long range in wide open space line of sight. 3. Fix frequency 523.80mhz, 555.80mhz, 561.40mhz, 579.30mhz. 4. Mini and lightweight design: Fashional brushed metal design receiver is compact,ideal for small stage performanceshome KTV. 5. Plug and play: The microphone will automatically and quickly synchronizes to the working channel of the receiver after power on. Specification: 1. Model: U-F4600 2. Material: metal 3. Function: UHF adjustable frequency, lithium battery reproduction, working time: 12 hours 4. Frequency range: 520MHz-580MHz 5. Channel: 16 6. Working range: 50-80M 7. Voltage: 3.7V