Skylink Universal Garage Door Visor Remote Control and Wireless Keypad value pack, Model 389KV is a combination of Skylink 39 and Skylink 89 Wireless Transmitters Operates most national brand garage door openers since 1975 (see compatibility char under product description). Model 39 is easy to carry or clip on sun visors. Model 89 provides the convenience of entry into your garage without the use of a remote or keys. Operating range up to 100 feet in an open area. 1-year warranty.