Chamberlain B730/WD962 Garage Door Opener Ultra-Quiet Belt Drive, 3/4 HPS with Battery Backup Powerful 3/4 HPS* DC belt drive system for the ultimate in quiet performance Built-In Battery allows for normal use even when the power is out MyQ Technology Enabled. Smart Garage Door Opener Timer-to-Close feature can automatically close the garage door after 1, 5, or 10 minutes Includes two 3-button remote controls, one wireless keyless entry system, and one control panel