Support APP: No Frequency: 433 MHz Channel: 8 Model Number: SHDC-8K Wireless Communication: Use: TV,Air Conditioner,Computer,Universal,Projectors,Audio / Video Players,Camera / Video Camera,Speaker,Lighting,Electric Door,Automated curtains,Switch Current: less than equal 10AMax. Voltage: DC9V/12V/24V/36V/48V/60V/72V Frequency: 433.92MHz Output way: self-lock,interlock, inching Encoded Mode: Learning code,Fixed code Colour:Photo Color Material:Plastic + Metal + Electronic Components Package Contents: 2 x controller 4 x remote controls 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.