It comes with a 110 volt power supply that will work with 220 volt transformers. It has a large easy to read display and a power packed bed shaker and has a battery backup in case of power failure. SB200ss Features: Travel & Bedside Alarm Clock, Large Bright Green LED Display, Extra Loud Pulsating Audio Alarm, Automatic & Hi/Low Dimmer Switch, Powerful 12-Volt Bed Shaker, Loud 113db Adjustable Tone & Volume Control, Dual Power Capability Of 110 & 220 Volts & 12/24 Hour Time, PM Indicator, Snooze Button, Battery Backup In The Event Of A Power Outage"
When I was a kid, I could set the alarm on my watch, and it would wake me up. When I was in my 20s, a clock radio would do. Now that I'm in my late 30s, I'm finding even three or four clock radios ineffective - they just irritate me instead of convincing my to get up, and then I get mad, and then the morning is shot.This clock seems to have been made for deaf, or near deaf folks. It has both audible and vibration alarm modes, and you can have one or the other or bo..
My son (15 yrs old) can NEVER, EVER get out of bed in the morning. I have grabbed him by the ankles and dragged him out of bed and he still doesn't wake up. I have taken a metal slotted spoon and banged on a pot and he still doesn't wake up.
This is the 1st thing that I have ever found that actually wakes him up! This alarm clock is worth every penny!