describe:1. Newly upgraded three-in-one interface receiver, compatible with mobile phones, tablets, computers, cameras and other devices.2. Dual microphones, one-to-two live broadcast, meet the needs of two people using live broadcast at the same time, and the sound quality is equally clear.3. Built-in DSP noise reduction chip, three noise reduction modes can be freely switched to meet the precise sound pickup in any complex environment.4.2.4G wireless transmission, recording more freely.5. Real-time monitoring of accurate expressions makes the recording process more accurate and improves the quality of the effects.Specification:Transmission protocol: 2.4G channelTransmission distance: barrier-free distance 15 meters; the distance between human obstacles is about 7 metersOne to two: supportHeadphone monitoring: supportedNoise reduction: AI intelligent noise reductionReverb: SupportSound delay: 30msMicrophone: -38dB3dB omnidirectional silicon microphoneFrequency response: 20Hz-20KHzSampling rate: 32KHZ or 48KHZSignal-to-noise ratio: 64dBTransmitter working current: 11-12mAReceiver working current: 20-21mAShutdown current: 2-3uAMicrophone battery/life time: 80MAH/6HReceiver battery/battery life: 120MAH/4HBattery charging time: about 1.5 hoursCharging input voltage: DC5.0VAdapter: 5V/1AWorking temperature: -10~45 degrees Celsius packing list:1.1 * Microphone +1 * Receiver +1 * Data cable +1 * Instruction manual2.2 *Microphone+1 *Receiver+1 *Data cable+1 *Instruction manual