The D Debra Pro UHF 4 Channel Wireless Microphone System is a quad channel UHF system that allows for cable-free operation. The metal build receiver and high-quality plastic handheld mics are durable and lightweight. The system features individual volume control with LED lights for visual feedback. The cardioid mic capsule ensures clear sound transmission, and the stable UHF signal provides interference-free operation up to 300ft. The system is easy to set up and operate, with multiple output options for connecting to amplifiers or mixers. Debra Audio focuses on quality and value in their products. Ideal for karaoke, meetings, public speaking, and other events.