Feature: 3.These modules are used for projects when you need to communicate wirelessly between 2 devices.4.Application: Remote control switch, receiver module, motorcycle, car prevention of burglary, home prevention of burglary, electrically operated gate, roller shutter door, roll-up window, remote control socket, remote control LED, acoustic remote control, remote control electrically operated gate, remote control retractable door, remote control roller shutter gate, pan door, remote control door machine and other lock control, remote curtains, alarm apparatus, remote motorcycle, remote MP3 player etcSpecification:working Voltage:DC5VWorking frequency:433MHzIt compatiable for PT2262��PT2260��EV1527��PT2240.It can study and save transmitters up to 24.There are 7 work modes:Jogging Mode Self-lock Mode Interlocked Mode 2 channel Self-lock Mode and 2 channel Jogging Mode 2 channel Self-lock Mode and 2 channel Interlocked Mode 2 channel Jogging Mode and 2 channel Interlocked Mode 2 channel Interlocked Mode and 2 channel Interlocked ModeColor:GreenSize:28 x 20 x 10 or 1.1 x 0.79 x 0.39 inch(L x W x H)Brand name BQLZRWeight:25gPackage include:5x RF Wireless receiver Module Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.