Chamberlain 956CB Mini Multi-Function 3-Button Remote Control 3 buttons to control up to three Chamberlain Security+ Garage Door Openers manufactured BEFORE 01 June, 2005. These are 390MHz openers with RED or ORANGE 'learn' buttons. All the power of the standard size remote control Fits easily into a pocket or purse Long life lithium battery included Includes a one year limited warranty