Support high voltage 5-9V receiver.300W relay.Transparent heat shrinkable tube help users see the working status of the LED clearly, stylish appearance.Two LEDs indicate working status.Max DC30V 10AAdd no signal protectionWith boot protection, easy to operateInput channels do not need to be calibrated, compatible with various of remote - control devicesSmall size and light weightApplication range:Remote control model launchRemote control model smoke controlWeapon system control like real machineModel aircraft's smoke controlControl of various remote switch systemsSwitch the signals of two camerasControl the opening and closing of various electrical sources, such as navigation lights, searchlights, strobe lights, buzzers, etc.Control the camera shutter or switch the camera's recording and camera mode.Colour:As shownMaterial:PC+MetalPackage Contents:2 x RC relay switchOnly 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.