1. Wireless transmission mode: no need to erect communication cables 2. Synchronous transmission of image and accompanying sound, color black and white compatible 3, miniaturization, light weight, easy to carry and easy to install 4. Quick and timely response, real-time transmission transmission and transmission 5. Adopting frequency modulation , with strong anti-interference ability and good image quality 6. High integration, stable and reliable operation, and long transmission distance 7. The camera adopts a and is integrated with the transmitter. Power supply only needs to be provided to one location, without the need for complex wiring, simple operation, and easy to use. Power supply voltage: 12V DC Current: 700mA Transmission power: 5000mW technical parameter Band: L-band (short wave) Frequency: 1060-1380 MHZ Number of channels: 4 Antenna input impedance: 50Ohm; Sound subcarrier frequency: dual sound 6.0MHz/6.5MHz Video input impedance: 75OHM Audio input impedance: 600OHM Colour:As Shown Material:plastic+metal type:C: Receiver+Transmitter Package Contents: 1 x Receiver 1 x Transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.