4 in 1 Remote Control DuplicatorThe 4-in-1 car remote control duplicator can clone up to 4 remote buttons from the same or different remotes allowing you carry four remotes in one! Each corresponding letter (A, B, C, & D) can each open a different remote controlled key. Optimal Solution Remote control duplicator is the easiest and least expensive way to copy any wireless remote, car key, garage door opener, and more! Suitable for remote control of electric gate, telescopic door, garage door, motor, curtain, cars and motorcycles, etc. 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 and each password is stored individually. Creative Design This 4-in-1 remote control duplicator transfers signals to duplicate your existing remote controls so you always have a duplicate remote or key available in case you lose the original. Multifunctional and changeable, personalized and humanized design allows it simple and quick to use. Easy to useEasy to copy and done within minutes Portable keychain design High frequency. current transistors are controlled separately to improve the power supply dynamics. One-click smart copy, improve work efficiency.High copy accuracy and high copy efficiency. One-click smart copy, improve work efficiency.