[4 in 1 Remote Copier]. The device can clone up to 4 remote control buttons from the same remote control or different remote controls, which allows you to carry four remote controls at the same time! Each corresponding letter (A, B, C and D) can open different remote keys. [The Best Solution] The replicator is the easiest and least expensive way to copy any wireless remote control, car key, garage door opener, etc.! It is suitable for remote control of electric doors, retractable doors, garage doors, motors, curtains, cars, motorcycles, etc. [Creative Design] The gadget can transmit signals to duplicate your existing remote control, so that you always have a duplicate remote control or key, in case you lose the original remote control. Multifunctional, modifiable, personalized and humanized design makes it easy to use. [Creative Design] Gadget can transmit signals to duplicate your existing remote control, so you always have a duplicate remote control or key, in case you lose the