kebidumei 433MHz 4CH garage door remote control duplicator with 27A batteryEasily duplicate your existing gate or garage door remotes with this kebidumei 4 channel remote control duplicator. Operating at 433. 92MHz, it's ideal for replacing or combining multiple remotes into one. With a long distance transmission range and a simple copy process, it's compatible with a wide range of RF controlled devices including electric doors, lighting, switches, and automated curtains. The remote comes pre installed with a 12V 27A battery