Features:Please notice:This is not for face to face copy or cloning or duplicating.It is only a common RF remote control(transmitter ), so it is only the professional can buy it alone or who buy our remote switch receiver, then need additional transmitter.If you are freshman about RF remote control system, please buy the duplicating/cloning /copied remote control.We are So Powerless about the people who do not understand then find it is cheap and buy it, when he gets it and tell us it doesn't work with his rolling code or other receiver... and give us the negtive feedback.Specifications:Material: Plastic + MetalColor: GraySize: 1594325mm/6.261.690.98in (Approx.)Type: 1: 1 Button; 2: 2 Buttons; 3: 4 Buttons; 4: 6 Buttons; 5: 8 Buttons; 6: 12 Buttons (Optional)Channel: 1 / 2 / 4 / 6 / 8 / 12 CH (Optional)Remote Control Distance:0-3000m ( Ideal distance without any block and signal interfere, it would rise and fall about 10%-90% with the block and signal interference.)Encode: 1527, 2262, Random deliveryFrequency: 433 MHzPower Supply: DC 9V Battery (NOT included)Standby Current: 0mAWorking Current: >80mAModulation System: ASKWorking Temperature: -10 ~ +70Quantity: 1 PC (other accessories demo in the picture is not included)Note:1.Transition: 1cm=10mm=0.39inch2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youPackage includes:1 X Remote Control Transmitter(Not including battery) (No retail package)