System Type: 4-channel UHF (Ultra High Frequency) wireless system with a metal-build receiver for durability. Performance Range: Offers a stable signal transmission with an effective range of 80m to 100m approx. 260-328 feet in open spaces. Frequency Management: Uses infrared (IR) linking for automatic frequency pairing between the transmitter and receiver. Output Connectivity: The receiver features four independent XLR outputs and one 1/4 (6.35mm) mixed audio output to connect to mixers, amplifiers, or PA systems. Power Source: Microphones typically operate on AA batteries with a run time of approximately 4-6 hours.