<ul> <li>Automatic pairing upon startup, 2.4G wireless lavalier microphone, no App or Bluetooth required</li> <li>Full-band lossless noise reduction, strong anti-interference ability, and still able to record every detail in a noisy environment</li> <li>20-20000Hz frequency response range, high-quality restoration of real sound</li> <li>The transmitter has a built-in rechargeable lithium battery, with a battery life of up to 10 hours</li> <li>Wireless operating distance up to 100 meters</li> </ul> <p><strong>Specification:</strong></p> <ul> <li>Transmitter &amp; Receiver:</li> <li>Transmission method: 2.4GHz digital frequency band</li> <li>Polar mode: omnidirectional</li> <li>Antenna type: ceramic antenna</li> <li>Operating distance: 100 meters (barrier-free)</li> <li>RF output power: 10dBm</li> <li>Distortion: &le;0.1%</li> <li>Frequency response: 20Hz-20kHz</li> <li>Sensitivity: -40dB&plusmn;2 (1V/Pa)</li> <li>Sampling rate: 48kHz</li> <li>Bit depth: 16bit</li> <li>Signal-to-noise ratio: 85dB</li> <li>Audio input: built-in microphone</li> <li>Audio output: RXD: iOS 8-Pin digital output</li> <li>Power supply:</li> <li>TX transmitter: built-in lithium battery power supply/charging box contact charging/USB-C charging port</li> <li>RXD receiver: get power from external devices/built-in 95mAh lithium battery</li> <li>TX battery capacity: 95mAh</li> <li>TX battery life: about 10 hours</li> <li>TX charging time: about 2 hours</li> <li>Weight: TX: 9.5g; RXD: 6g</li> <li>Size: TX: 53.0*18.4*16.8mm/RXD: 47.4*26.6*11.6mm</li> <li>Working temperature: 0℃ ~ +50℃</li> <li>Storage temperature: -10℃ ~+ 50℃</li> <li>Charging box:</li> <li>Battery capacity: 600mAh</li> <li>Charging time: about 2 hours</li> <li>Charging interface: USB-C interface</li> <li>Number of cycles available for charging: 2 times (2*TX)</li> <li>Weight: 74.5g</li> <li>Size: 65.8*52.8*72mm</li> <li>Working temperature: 0℃ ~ +50℃</li> <li>Storage temperature: -10℃ ~ +50℃</li> </ul>