[4-in-1 remote copier]. The device can clone up to 4 remote control buttons from the same or different remote controls, allowing 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 simplest and cheapest 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. [] This 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 original remote control. The multifunctional, changeable, personalized and humanized design makes it easy to use. [] This 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 original remote control. The multifunctional, changeable, personalized and humanized design makes it easy to use. [Easy to use] It is easy to copy and complete the high-frequency design of portable key chain in a few minutes. The current transistor is controlled separately to improve power supply dynamics. One click intelligent copy to improve work efficiency. High copy accuracy and high copy efficiency. One click intelligent copy to improve work efficiency. Material: Plastic + Metal colour: multicolor Package Contents: 3 x garage door opener remote Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.