DC 12V 1CH Remote Control Light Switch Relay Output Radio Receiver Module and Waterproof Transmitte Garage Doors Operating Voltage: DC12V Maximum Load: 10A Operating Frequency: 315 MHz/433MHZ (here is in set .we have made it working together .so you don't have to care about what frequency are they ) Receiver Sensitivity: -100dBm Encoding Type: learning code PCB Size (L x W x H): 55*32*17mm Remote Control Size(L x W x H): Approx. 55 x 30 x 13mm(2.2 x 1.2 x 0.5 inch) Features: This is a high quality wireless control The wireless signal can pass through walls, floors and doors It uses fixed coding, stable and reliable You can turn on or turn off the receiver with transmitter (remote control) from any place within a reliable distance There is a slidable cover on the remote control Easy to install and operate There is also a hook on the remote control.It's easy for you to carry Instruction: Learning and Removing Method 1.press the learning code .the indicator flash, loosen your finger, press any button of the remote control, the indicator flash 2 times and off .it mean you learn it successfully. 2.It can learn more than 12 PCS 2262 or 1527 chip with the different code wireless remote control 3.Remove/Clean: press the learning button about 8 seconds, the indicator turn on to off , it means the information that you keep have been removed successfully. Note: 433mhz and 315 mhz are available ,315mhz will be sent out if there is no demand on frequency Package Includes: A: 1 x Receiver(with cover) B: 2 x Transmitter(with battery) C: 1 x Receiver(with cover) 1 x Transmitter(with battery) D: 1 x Receiver(with cover) 4 x Transmitter(with battery)