4-in-1 433MHz Remote Control Duplicator Car Garage Door Remote Copy Remote Controller ?[4 in 1 Remote Control Duplicator] Duplicator is the easiest and least expensive way to copy any wireless remote,car key,garage door opener,and more ?[Creative Design] This gadget transfers signals to duplicate your existing remote controls so you always have a duplicate remote or key available in case you lose the original ?[High Security] You can open your garage door and unlock your car by using one remote control instead of carrying two keys with you. The seamless infrared connection is secured and safe to use through data encryption. You can copy any compatible wireless remote key and each password is stored individually ?[Easy to Use] Easy to copy and done within minutes. Portable keychain design,easy to carry and use ?Specification: ?Operating frequency: 315/433MHz ?Working voltage: 12V27A ?Working current: 7.4-8.8MA ?Standby current: