You can sleep soundly without being awakened by the Chamberlain Whisper Drive 1/2 HP Belt Drive Garage Door Opener. The belt drive is quiet and can be installed in garages situated underneath living space. The opener operates on a 1/2 HP motor that can lift almost any garage door. The 5-piece quick install rail system can be assembled in about 1 minute. No lubrication is required; the durable steel-belted construction is virtually unbreakable and unstretchable.