Sonic Alert SBB500SS Alarm Clock 113 dB Black & Red

Sonic Bomb Alarm Clock

The Sonic Alert SBB500SS is a digital alarm clock rated at 113 dB for heavy sleepers who struggle with standard alerts. It combines an extra-loud audible alarm with a bed-shaker accessory that vibrates the mattress to wake the user physically. Adjustable volume, tone and snooze duration let each person tailor the wake-up intensity to their own needs. The unit suits students, shift workers and anyone who regularly sleeps through quieter clocks.

Thermals Noise and Power

Mains power runs the clock and the wired bed shaker while a battery backup keeps time and alarm settings during outages. The 113 dB rating applies to the acoustic alarm; the shaker operates silently through vibration so it does not add audible noise in shared rooms. A Hi-Lo dimmer controls display brightness for night-time comfort. No active cooling is required and the compact 7.0 in x 7.0 in x 6.0 in footprint draws minimal household current.

Sustained Load Behaviour

Dual-alarm programming allows two separate wake times with independent 1-59 minute alarm durations and 1-30 minute snooze intervals that repeat reliably day after day. The shaker offers three selectable modes — vibration only, buzz only or a combined vibrate-and-buzz cycle — so long-term users can rotate patterns and avoid habituation. Battery backup preserves all programmed settings across power cuts without daily re-entry. The clock switches between 12 and 24 hour formats to match user preference.