<ul><li><p>The microphone system has powerful and stable signals, using UHF frequency band, with 30 selectable channels in the 520-580MHz frequency range for interference-free operation, and the wireless range is up to 50m</p></li><li><p>High-definition sound lavalier microphone, and the pocket receiver is light in volume, convenient for users to carry, without complex debugging process, plug and play immediately. The signal is transmitted stably, bring you a great sound effect</p></li><li><p>Transmitter with LCD display to show battery status, channels, etc. Comes with a camera shoe mount, it can be directly fixed to your DSLR camera and other shooting equipment</p></li><li><p>The wireless receiver is plugged into the 3.5mm conversion head, connected to the cable, and then connected to the microphone jack of the camera</p></li><li><p>This system is perfectly fit for smart phone recording, DSLR videography, field recording and interviews, broadcast TV, providing dependable audio broadcasting and recording</p></li><li><p>Receiver powered by 3.7V lithium battery(included), with a long using time up to 6 hours, transmitter powered by 2*AA&nbsp;batteries(not included)</p></li></ul><p><strong>Specification:</strong></p><ul><li><p>Number of Tracks: Mono or Dual Tracks</p></li><li><p>Receiving Sensitivity: &gt;-90DB</p></li><li><p>Frequency Response: 80H-15KHZ</p></li><li><p>Frequency Stability: ±0.0050</p></li><li><p>SNR(Signal to Noise Ratio): 270dB</p></li><li><p>Scope of Work: 30-50 meters under ideal conditions</p></li><li><p>Transmission Power: ≤10MW</p></li><li><p>Frequency Range: 630-690MHZ</p></li></ul>