Usage Environment: Remote control switches, motorcycles, car anti-theft products, home security products, electric doors, roller shutters, windows, remote control sockets, LED remote control, remote control electric remote control audio ports, garage door remote control, rolling door remote control, volume gate remote control, panel doors, remote control door openers, door closing device control systems, remote control curtains, alarm hosts, alarms, remote control motorcycles electric remote control cars, MP3 remote control. Note: Compatible transmitter encoding type: EV1527 If you do not use the EV1527 transmitter, the encoding will not apply to the receiver. Specifications: Product Model: RX480-E4 Working Voltage: DC 3.3-5V Holding Current: 5mA Working Frequency: 433 MHz Receiving A Sensitivity: -108dB Receiving Distance: 15 meters above Frequency Range: 0.2 MHz Working Temperature: -25~75 Working Mode: Jog, Self-locking, Interlock Output: 4 CMOS signal level channels corresponding to ABCD 4 remote control buttons. Size: 2.7x1.8cm/1.06x0.71\" Quantity: 1 Pc Note: Please allow 0-1mm error due to manual measurement. Make sure you don't mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you No retail package Package Contents: 1 x 433 MHz Receiver Module