SPECIFICATIONSBrand Name: DEPUSHENGBuilt-in Battery: NoCertification: CEChoice: yesCommunication: WireLessCompatible Devices: Pre-effects, Audio Mixer, Active speaker, AmplifierDEPUSHENG Model: R3Diaphragm: S-MallDistortion: <1% 1KHZ modulationFrequency response: 50HZ-18KHZHigh-concerned chemical: NoneKinetic energy range: >98dBOrigin: Mainland ChinaPackage: YesPolar Patterns: CardioidRecommended Uses For Product: KTV Stage Performance Church Wedding Show Band HomeSet Type: Multi-Microphone KitsSpecial Feature: Volume Control, Noise ReductionStyle: Handheld MicrophoneTransducer: Dynamic MicrophoneUse: Karaoke MicrophoneWorking effective distance: 30-50mMicrophone Wireless Depusheng R3 Professional UHF System Handheld Mic For Stage Speech Wedding Show Band Home Party Church【Clear and pure sound quality】R3 wireless microphone system uses professional cardioid dynamic coil, the system can reproduce more excellent, clear, pure and complete sound. Suitable for karaoke, house party, DJ, wedding and church.【Enhanced Signal Stability】Two metal antennas give the microphone a long transmission range of 165 feet (50 meters) in open areas. The wireless microphone has a built-in high-quality chip to maximize radio signal strength and improve frequency distance.【Rugged and durable materials】 - Plastic microphone and steel grid grille are especially resistant to impact and corrosion. The receiver box has separate volume control, adjust frequency button, delay effect and echo effect buttons.【Receiver's dual-channel design】 UHF wireless microphone system provides 2 independent channels, each with a dedicated microphone and a separate receiver box for volume adjustment. The wireless system also features automatic frequency scan and automatic transmitter setup for easy synchronization between transmitter and receiver.【Easy Setup】- Connect with amplifier or speaker (1/4 inch audio cable or XLR cable), install 2 AA batteries in the microphone (not included), then turn on the receiver, speaker and wireless microphone. You can easily set up your karaoke machine. Note: It is not compatible with laptops, IPads, cell phones and AV receivers.Note: Comprehensive specifications. The specific frequency range can be customized according to the country of use.Product parameters:TransmitterCarrier frequency: UHF 530-920MHZTransmitting power: 10dBSub-harmonic: ＜40DB of main waveFrequency Stability: ±0.005%Current Dissipation: 120mASystem: FMBattery: 1.5V×2ReceiverReceiving frequency: UHF530-920MHZReceiving Sensitivity: -100dBmAudio Output: 0-800mVReceiving audio: 2 wayPower consumption: 1WMaximum Offset: ±45KHZSignal-to-noise ratio: >98dBPower supply voltage: DC5VProduct List:UHF wireless receiver*1Antenna*2Wireless handheld microphone*2Power adapter*1Type-charging cable*1Sponge cover*2Anti-rolling ring*26.35 to 3.55 conversion head*11/4-inch audio cable*1English user manual*1