: Advantages: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.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 etc.5.When it is Power enable mode, the Power consumption can be 50nA.6.Several receiver module can work at the same time and they won't influence each other. Specification:working Voltage:DC3V-5.5Vworking principle:SuperheterodyneWorking frequency:433MHzWorking temperature:-40 to 85 degreeReceiver sensitivity : -115DBm(50)Transmitting velocity: < 10Kbps(Manchestercoding)Color:GreenSize:43 x 18 x 5/1.69 x 0.71 x 0.2 inch(L x W x H)Weight:40g Package include:20 x RF Wireless receiver Module