2211-L Garage Door Opener Remote for 303MHz Dual Frequency Burst Garage Door Opener with Security Rolling Code Support. Ideal for multi-vehicle households or as a replacement for lost or damaged remotes. Compatible with 2211-L and 2211-L(TX) garage door opener models. 2-button keychain remote controls up to two garage door openers. Designed to minimize power consumption for extended battery life. Enhanced security with rolling code technology ensures a range of up to approximately 120 feet, reducing radio wave interference. Before programming the remote, ensure the garage door opener is fully closed. Color: Black. Material: Plastic. Package includes: 3x Garage Door Remotes (each with 1x 23A 12V dry battery). Item in image may differ slightly in color due to lighting and display variations; this does not affect functionality. Measurement error allowance: +/- 1-3 cm.