<ul> <li>Small body, lightweight, free to wear, simple style, black appearance, refined and atmospheric</li> <li>Comes with a 600mAh charging case, and ultra-long endurance without worry?</li> <li>Suitable for short video recording, live selling, outdoor interviews, online teaching, easy response in various noisy environments, shooting?</li> <li>Plug and play auto pair. Easy to operate Automatic connection at startup</li> <li>Live/video recording, stable signal, clear reception, synchronous and accurate transmission of sound and images</li> </ul> <p><strong>Specifications:</strong></p> <ul> <li>Transmission protocol: 2.4G channel</li> <li>Transmission distance: barrier-free distance ≥ 20 meters; human barrier distance of about 7 meters</li> <li>One-to-two: Support?</li> <li>Headphone monitoring: Support (for Type-C interface headphones)</li> <li>Noise reduction: AI intelligent noise reduction</li> <li>Reverb: Support</li> <li>Sound delay: ≤30ms</li> <li>Microphone: -38dB±3dB omnidirectional silicon microphone??</li> <li>Frequency response: 20Hz-20KHz</li> <li>Sampling rate: 48KHZ</li> <li>Signal Noise Ratio: ≥64dB</li> <li>Operating current: 11~12mA</li> <li>Power off current: 2~3uA</li> <li>Microphone battery/endurance: 60mAh/5H</li> <li>Rechargeable battery: 600mAh</li> <li>Charging time of charging case: approx. 2.5 hours</li> <li>Charging voltage of charging case: DC4.8~5.2v</li> <li>Adaptor: 5V/1A; 5V/2A</li> <li>Working temperature: -10-45℃</li> <li>Product size: 24 x 62 x 80mm</li> </ul>