<p>1.The newly upgraded three in one interface receiver is compatible with devices such as phones, tablets, computers, cameras, etc.</p> <p>2.Dual microphone, one drag, two live streaming, meeting the needs of two people using live streaming at the same time, with the same clear sound quality.</p> <p>3.Built in noise reduction chip, three noise reduction modes can be freely switched to meet precise pickup in any complex environment.</p> <p>4.2.4G wireless transmission for more free recording.</p> <p>5.Real time monitoring for precise expression, making the recording process more precise and improving the quality of the effect.</p> <p>Parameter:</p> <p>Transmission protocol: 2.4G channel</p> <p>Transmission distance: obstacle free distance \u2265 15 meters; The distance between human obstacles is about 7 meters</p> <p>One drag two: support</p> <p>Earphone monitoring: supported</p> <p>Noise reduction: AI intelligent noise reduction</p> <p>Reverb: Supported</p> <p>Sound delay: \u2264 30ms</p> <p>Microphone: -38dB \u00B1 3dB omnidirectional silicon microphone</p> <p>Frequency response: 20Hz-20KHz</p> <p>Sampling rate: 32KHZ or 48KHZ</p> <p>Signal to noise ratio: \u2265 64dB</p> <p>Working current at the transmitting end: 11-12mA</p> <p>Working current at the receiving end: 20-21mA</p> <p>Shutdown current: 2-3uA</p> <p>Microphone battery\/battery life: 80MAH\/6H</p> <p>Receiver battery\/battery life: 120MAH\/4H</p> <p>Battery charging time: approximately 1.5 hours</p> <p>Charging input voltage: DC5.0V</p> <p>Adapter: 5V\/1A</p> <p>Working temperature: -10~45 degrees Celsius</p> <p>Colour:Gray</p> <p>Material:plastic+Metal</p> <p>Package Contents:</p> <p>2 x Microphone</p> <p>1 x Receiver</p> <p>1 x Data Cable</p> <p>1 x English Instructions</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection 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.</p>