Check the listing for details. Wireless Remote Control Switch System 12V 1CH Transmitter&Receiver Access 315MHz. Condition: New. Listed at 6.95 USD. Features: 1. 100% Brand new and high quality2. Easy to install, equip with remote receiver module and box3. With a hook on the remote control sender4. Using learn code, stable and reliable5. The distance max up to 30 meters ( In an empty, undisturbed place)6. Don't need walk to open the door, you just press the button of the sender, then ok.7. Suitable for automatic door, window, lifting equipment, access entry, alarm system of industrial control and security etc. Specifications:Material: high quality plastic/ metalMax charge current: 10AOperating voltage: DC12VWorking Temperature: -20 to +65Channel: 1The frequency of work: 315MHzRemote distance: 30 mModule size:31mm*34mm*16mm(L/W/H)Remote control Size: 60mm * 28mm * 11mm(L/W/H)Weight:0.1kgSuitable for door: single door RHOMBUS