The Digital 384 four button remote control is a Marantec product that works with up to four Marantec garage door operators using the 315MHz frequency. You can clip the remote control to your car visor or attach it to your keychain. The multi-bit code technology is very secure and lets you program as many Marantec remote controls or vehicles as you want. The package comes with a visor clip, a programming connector and instructions. This is an original Marantec product that ships the next business day and has a 30 day return policy.