Description/Features: Efficient Wireless Performance: This set of 20pcs remote controls operates at 433Mhz, ensuring strong signal penetration and wide range. Ideal for copying and cloning existing remote signals for and garage doors. Portable and : Designed with a compact form factor, these remotes are not only easy to carry but also built to withstand everyday use, making them perfect for busy households. Easy Setup: The cloning feature simplifies the setup process, allowing you to duplicate codes from existing remotes without needing professional help, saving time and effort., Manufacturer: Ounfhtrttk