<ul> <li>Realize long-distance high-definition radio for webcasting, video VLOG shooting, interview radio, video teaching, and other occasions</li> <li>Automatic noise reduction, reverb, monitoring, external playback, and mute, can charge the cell phone while broadcasting</li> <li>Wireless pair connection, power on automatic connection, simple operation, support one to two double-use</li> <li>Can be used for cell phones, computers, and other devices without an APP</li> <li>Comes with a charging compartment, so you can charge the microphone, convenient storage, and portable out of the house</li> </ul> <p><strong>Specifications:</strong></p> <ul> <li>Microphone: digital mic</li> <li>Input voltage: 5V&nbsp;</li> <li>Battery capacity: 70mAh&nbsp;</li> <li>Charging case battery: 300mAh&nbsp;</li> <li>Endurance: 6 hours&nbsp;</li> <li>Signal-to-noise ratio: 64DBM Adaptive noise reduction&nbsp;</li> <li>Transmission Delay: 30MS&nbsp;</li> <li>Sensitivity: -42DB&nbsp;</li> <li>Frequency range: 20-20KHZ&nbsp;</li> <li>Transmission distance: 15 meters without obstacles</li> </ul> <p><strong><span>Notes:</span></strong></p> <ul> <li><span>Laptops need to be set to microphone input before use</span></li> <li><span>Only for Typ-C devices with OTG function (better production after 2019)</span></li> <li><span>Some Android phones need to activate the "OTG" function when plugging in the USB-C receiver</span></li> </ul>