1. Professional Level UHF Wireless Microphone system:Professional UHF microphone system delivers clear and lound audio signal and is much more stable than the VHF, 4-channel wireless microphone receiver,Fixed frequency,Group A 504.50MHz, 514.60MHz, 521.90MHz, 538.70MHz,superior anti-interference ability.Upgraded wireless signal acquisition, 2 antennas can be installed on the back of the receiver to enhance the received signal, ensuring high frequency stability and accurac 2. Robust Design And High-Quality Sound: Sturdy all metal construction for Quad-channel UHF wireless microphone receiver and high sensitivity unidirectional bodypack mics, suitable for heavy use. High quality dynamic cartridge is specially engineered to limit feedback and interference, picking up sound smoothly and transmitting sound hassle-free. Deliver clear, robust, true sound 3. Simple And Convenient Operation: Both the receiver and the microphone have a high-end LCD display, and the battery usage and working status are clear at a glance,Also The receiver has four XLR balanced outputs and one 1/4 inch (6.35mm) mix output jack that can be externally connected to a variety of external devices such as amplifiers, mixers, stereos, and more 4. Stable Transmission Technology And Versatile Use: Professional wireless microphone system. Better sound quality improvements, separate volume control, and adjustable sound output as needed, making it good choice for any outdoor event such as party, wedding, speech, conference, small gigs, karaoke.With an operating range of up to 300 Ft Specifications: 1. Material: Metal+ABS 2. Frequency: 504.5-593.2Mhz 3. Fixed frequency 4. Receiving distance: 50 meters