Intellicode 2 technology, but is also compatible with Intellicode 1 It can operate up to three Genie garage door openers with Intellicode Auto-seek dual frequency technology automatically transmits in both 315 and 390 MHz to minimize possible frequency interference related to consumer electronics or nearby government bases (Intellicode 2 openers can operate on 315 or 390 MHz) Temporary PIN codes to allow for one time special access needs Uses standard AAA batteries