The Pyle PDWM221WT is a portable, universal wireless microphone system offering professional-grade sound performance. It features a Uhf band receiver system with a quad frequency, allowing you to use up to four microphones simultaneously. The system includes four handheld microphones (white), each with adjustable frequency controls. This versatile system supports a frequency range of 500-938 MHz and has a high signal-to-noise ratio for clear sound quality. Powered by Aa batteries (included), it offers 4 to 8 hours of use. Perfect for events, presentations, and performances, this system ensures robust and reliable audio transmission.