Skylink G6K Keypad Transmitter,Skylink,G6K" /> Wireless system that provides the convenience of entry into your garage without the use of a remote or keys Works with Skylink Smart ButtonTM Receiver Model GB-318. If not program to a Skylink Garage Door Opener.(sold separately). Standard soft-key back-lit keypad. Operating range of up to 100ft in an open area. Two 3V lithium batteries included FCC/IC approved