UHF Frequencies-The wireless lapel microphone system has 20 frequencies selection for seamless, interference-free operation.An easy-to-read LCD information display provides constant monitoring of system operation, Receiver battery condition indicators with low-battery warnings.Convenient and easy to use- No static,no drop out with use at a distance of 40-65 feet.With unique paired ID synchronization for each wireless transmitter and receiver make setup easy.Setting up a wireless mic is as simple as plugging in a wired microphone.Wireless Headset & Lavalier-Headset microphone fits securely for active speakers and vocal performers.Lavalier microphone with included tie offers low visibility and hands-free use.optimized for Houses of Worship in a church preaching, videos,and classroom and presentation applications.Versatile and Compatible Microphone-Work with mixers, pa speakers, electric guitar amplifiers and sound boards with 1/4 inch interface to output the sound, perfect for teaching lectures,conference speech, visiting guide.With included 1/4 inch to 1/8 inch adapter-cable,suit for camera recording.Technical parameters: Modulation ModeTransducer:Condenser MicrophoneUse:Stage Performance Wireless MicrophoneSet Type:Transmitter Sets Patterns:OmnidirectionalCommunication:WirelessModel Number:lavalier microphoneModulation :Digital Frequency Modulate Frequency RangeFrequency range:UHF 500~980MHz Preset FrequenciesPreset spelling point:8 (auto paring)Frequency response:75Hz~18kHz+/-3dB Max. Deviation Range consumption:80mA Battery LifeUse time:Up to 6 hrs Recharging TimeTransmitting :30mw Battery TypeUse time 2:Up to 10 hrs Dimensioncolour:blackmaterial:ABSPackage Contents:1 * launchers1 * receiver1 * USB cable1 * 3.55 adapter1 * headset microphone1 * lavalier microphoneOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.