Feature: and high quality This module can connect 3 video sources and you can switch between different video sources with a 3 position switch to your ground station. If you have multiple cameras on your plane, this is what you need. 3 channel Switchover module,adopts high speed video switch chip,effectively reduce the vibration of the Video image. The control channel can be any proportional channel or 3-position switch channel. (2-position switch channel can only switch within two video input signals Color: blue Material: PC+ metal Model: PV3IN1 Size: . 4.0 x 1.8 x 0.5cm Input voltage: 4.8-6V Input channels:3 Output channel: 1 Video signal impedance: 75Ω Port "in" is video signal input,IN1,IN2,IN3,OUT is video output "-" is negtive pole,"+" suspend,"S" is receiving Video signa Package Contents: 8 x Video Switcher Module 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.