Package Contents: you receive 2 pieces of door remotes compatible with for Guardian 2211 L 2 button garage door remote transmitter for visor or wall mounting, key ring and leather sets to meet your usage needs and operate them well Compatible Models: compatible with for Guardian 303mhz dual band agile receiver, this standard 2 button remote gives you the option to control up to 2 garage door openers, please follow the information before purchasing Programming Instructions: the garage door remote is compatible with for Guardian 2211 L 2 button garage door remote transmitter, operating at 303mhz, with clear instructions and easy programming; Before starting remote programming, make sure the garage door opener is fully closed., Weight: 0.17196056436 pounds, Manufacturer: Quzenn