LiftMaster 1-1/4 HPs Belt Drive Opener with Battery Backup and myQ Connectivity.
The 6690L & ThunderMounts  are a great combination together achieving an excellent system.
*("Thunder Mounts not included with opener at this time")
 
Worry-Free Warranty: Built to last and backed by a lifetime motor and belt warranty for total peace of mind.
Battery Backup: With built-in Battery Backup, your garage door continues working - so you're never locked out when it matters most.
Ultra-Quiet Performance: Engineered for quiet, these openers are powered by DC motors and reinforced belts that glide the door with minimal noise—perfect for homes with living spaces near the garage.
All-Day Visibility: The 360° camera with adjustable wide-angle and full night vision lets you see every corner of your garage - day or night.
Heavy-Duty Performance: LiftMaster’s 1¼ HP* equivalent motor is designed for high-use garages and harsh conditions.
*For comparison only. DC motor lift capacity is not measured in HP.
360° LED Lighting: Brightens your garage from every angle.
myQ Connectivity: With the myQ app, control and monitor your garage from anywhere, anytime.