Wireless handheld microphone system for karaoke, party, DJ, business meetings, speech or other outdoor & indoor activities.Adopts UHF 676MHz to 697MHz frequency band(channel A: 677MHz - 686MHz; channel B: 687MHz - 696MHz), strong anti-interference.A/D and D/A are used for high performance audio of 24Bit/48KHz; Using the ID code + frequency to encrypt the data to the frequency, which enhances the connection stability.With automatic mute and shock elimination circuit to avoid the impact and noise of the switching; extremely high pick-up sensitivity and excellent tone quality make your speech or singing more clear.The wireless transmission distance is about 30 to 50 meters; multiple devices(max. 16 sets) can be used simultaneously without interference or frequency hopping.Style: Handheld Microphone Patterns: OmnidirectionalCommunication: WirelessTransducer: Condenser MicrophoneSet Type: Single MicrophoneUse: Stage Performance Wireless MicrophoneSystemFrequency Response: 676-697MHzChannel Number: 10(conservative values) each time matching, ID code random change, within the frequency range set by the manufacturerOscillator: DSP chip frequency lockFrequency Stability: +/-10ppmDistortion: less than or equal to 05%ReceiverSensitivity: -95 to 71dBmSound Frequency: 40 - 18000HzSNR: greater than or equal to 90dBAudio Output: 1/4 inch unbalanced output 300mV Supply: Built-in 1000mA Rechargeable BatteryReceiver Weight: 49g / 17ozTransmitterRF : 10dBmSound Frequency: 40 - 18000Hz Supply: 2 * AA Batteries (Not Included)Transmitter Weight: 203g / 72oz(without batteries)colour:blackMaterial:Metal + plasticsize:Transmitter Size: 23 * 4cm / 91 * 16inReceiver Size: 125 * 3.5 * 2cm / 49 * 14 * 08inPackage Contents:1* Receiver1* Mic1* Antenna1* USB line1* 35mm Converter1* Users' ManualOnly 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.