<ul> <li>3-in-1 output, suitable for iPhones, Type-C smartphones, and devices with a 3.5mm interface</li> <li>Automatic noise reduction, reverb, monitoring, external playback, and mute functionalities</li> <li>2.4G wireless pairing, automatic connection upon startup, and easy operation</li> <li>Compatible with various devices such as smartphones, computers, tablets, speakers, amplifiers, cameras, etc.</li> </ul> <p><strong>Specifications:</strong></p> <ul> <li>Mic head: Digital microphone</li> <li>Input Voltage: 5V</li> <li>Microphone Battery: 200mAh</li> <li>Receiver Battery: 200mAh</li> <li>Battery Life: 12 hours</li> <li>Signal-to-Noise Ratio: 64DBM</li> <li>Transmission Delay: 30MS</li> <li>Sensitivity: -42DB</li> <li>Frequency Response: 20-20KHZ</li> <li>Transmission Distance: Up to 15 meters without obstacles</li> </ul> <p><span><strong>Notes:</strong></span></p> <ul> <li><span>1. The laptop needs to be set to microphone input before use.</span></li> <li><span>2. Only suitable for Type-C devices with OTG function (production after 2019 is better).</span></li> <li><span>3. Some Android phones need to activate the "OTG" function when plugging in a USB-C receiver.</span></li> </ul>