Wireless Microphone System, Dual Channel Cordless Microphone Set With 2 Handhelds, 2x100 Channels, Auto Scan, Lock Function, 328ft Coverage, Great For Djs, Churches, Events.Premium Wireless Performance: Dual Uhf Wireless Microphone System With Selectable Frequencies. Channel 1: 538.3 - 566.5mhz (100 Channels). Channel 2: 571.3 - 599.5mhz (100 Channels). Using Pll Frequency Synthesis Technology, It Provides Worry-Free Sound Transmission, Minimal Dropout And Maximum Feedback Rejection. Smooth And Fast Ir Sync. 290 Ft - 328 Ft Line-Of-Sight Remote OperationRugged Construction, Multi-Channel Capability: Rugged Metal Construction For Wireless Receivers And Wireless Handheld Microphones. The Durable System Features A High-Quality Cardioid Dynamic Cartridge Designed For Clear, Powerful, And Best-In-Class True Sound. Full-Range Response And Excellent Vocal Reproduction. Multi-Channel Capability Enables Users To Select A Different Frequency When Preset Frequencies Fail, Ensuring Interference-Free Reliable Performance And Allowing Multiple Systems To Be Used SimultaneouslyAuto-Scanning Function And Anti-Jamming Function: The Uhf Microphone System Is Equipped With An Auto-Scanning Function, Which Enables The System To Search For The Channel With The Least Interference To Pair With The Transmitter. It Also Has A Lock Function To Lock The Selected Frequency. It Integrates Wireless Earphones, Wireless Lavalier Clips, And Handheld Microphones To Meet Various Needs. 2 Antennas Are Designed To Increase The Anti-Interference Ability And Reduce The Interference Between Each Channel.Box Contents: 1 Channel Wireless Metal Receiver For Long Operation, 2 Uhf Wireless Handheld Microphones, 1 1/4" Audio Cable, 1 Power Adapter, 2 Antennas, 2 Roll Rings, 4 16 Hours Long Use With Aa Batteries, 1 X User Manual