Practicality: remote control range up to 50 meters, it is a fixed frequency remote clone to copy common fixed code and learning remote controls 99.99%.Clone up to 4 remote signals from 4 remote controls different. Multi-function: Easy-to-use 4-channel remote control system with one-button anti-theft and anti-theft functions to help you control gadgets, cars, homes and garages. Security Control: The learning code has high-level security for its low repetition rate and relearn mode, by which it can delete the old code and relearn a new code when a remote control is lost, so you always keep control of it. Easy to use: extremely easy to install, learn, relearn and control (please refer to the note).Stable and reliable performance, high receiving sensitivity.regularly monitor the receiver from any location at a reliable distance. Wide application: wide range of applications from simple household remote control to standalone control such as window, entrance, garage doors, alarm system, lifting equipment, etc. Kind notePlease read the 3 points before purchasing to comply with the conditions, so as not to be inconsistent after purchase:1.The original remote control can be used normally.2.Know the transmission frequency of the remote control original.3.The original remote control coding IC is PT2262 PT2264 SC2262 SC2260 HS2262 2260 LX2262 2260 EV1527 PT2240, etc. Specifications: Material: Plastic, Metal Rated voltage: 12V Channel: 4 Size: 5.5 x 3 x 1.2 cm How to program :1.Press the top two buttons (A and B) simultaneously for about 3 seconds until the red light flashes quickly (please complete this step before moving on to the next one).2.Place the replacement remote control and the original key as close as possible.3.Press and hold a button on your original remote and one of the buttons on the replacement key simultaneously until the red light on the replacement key flashes continuously.(The red light will first flash 3 times quickly, then stop for a second, then flash steadily once successfully cloned).Programming is now successful!If you want to program more buttons, simply repeat steps 24. To reset the remote, simply start again with step 1.5.If you accidentally reset your replacement remote, simply press the bottom two buttons (C and D) for about 3 seconds until the red light flashes quickly. Package includes: 3 x remote control