This 4-key remote control is suitable for electrical control circuit such as anti-theft alarm remote control electric windows signal control industrial control and lifting equipment and so on. The remote control uses fixed wireless code encoding has no direction. The is remote control is a necessary accessory for your car. - Adjustable frequencies: 280MHz~500MHz - Works with below codes: 2262 2260 1527 2240 5326 - Can't te rolling code HCS301 - Powered by 1 x 12V/27A battery (included) - Package includes: 5 pieces controllers - Easy to te other decoding method; Suitable for 280~500MHz frequency remote control; Perfect for motorcycle car television Roller Shutter door http://m5.img.dxcdn.com/CDDriver/CD/sku.91286.doc http://m5.img.dxcdn.com/CDDriver/CD/sku.91286 English manual.doc