Sanyo SBB500SSB Sonic Bomb Alarm Clock Blue .75 inch Mounting Holes (Inner Height): 2

Mounting Holes (Inner Height): 2 11/16" High (From Hole to Hole)

035 Expandable Wing Blades That Span 2

Powered by 4 AA batteries

The system is expandable up to 12 handsets

Sanyo SBB500SSB Sonic Bomb Alarm Clock Blue .75 inch Mounting Holes (Inner Height): 2113 dB extra loud dual alarm (with adjustable tone & volume control) Packaged with our most powerful 12 volt bed shaker Built in red flashing alert lights Five level dimmer function User selectable snooze time 1 30 minutes your choice User selectable alarm duration from 1 59 minutes Improved battery backup, will back up the time and alarm settings up to one week New green power technology now uses 60% less energy Alarm & Bed Shaker Test Mode Dual time