... With 4 handheld microphones, each on their own independent UHF channel, the SKW-104 gives you maximized vocal ... Features:Fourl channel diversity wireless receiver Includes Four UHF Wireless Microphones 200 adjustable frequencies with DPLL synthesized control ... including: Signal Strength, Audio Level, Operation Frequency and Diversity Antenna Selection Service Area: 330 ft (100 M) Specifications: ...