The SBP100 is an affordable, compact travel alarm clock specially designed to wake deaf, hard of hearing, and hard-to-wake individuals. The Sonic Alert Sonic Shaker SBP100 travel alarm clock comes complete with batteries, pillow strap with clasp and a protective travel case. You can be awakened by the powerful bed shaker and/or loud pulsating alarm so you won't ever sleep through appointments, work or school. Features: 90dB audible alarm Powerful vibration Easy-to-set function keys Easy-to-read 0.75" display Standard size batteries included (2 AA; 1 AAA) Travel case with pillow clasp included Continuous four minute snooze Swivel and flush mounted display protects settings Manually lighted display for up to 50% longer battery life Dimensions: 3.75" diameter Feature Details Primary Use Home Brand Sonic Alert Mfg part # SBP100PUR UPC 650518102071 Warranty 1 Year Manufacturer Warranty Color Blue Item Dimensions 3.75" Diameter Weight (lbs) 0.45 Battery operated? Yes (batteries required) Batteries included? Yes Battery details (2) AA Alkaline, (1) AAA Alkaline What's included? (1) Sonic Alert Sonic Shaker Alarm Clock, Batteries Country of Manufacture China Alert Type(s) Vibration Flashing Light Loud Audible Yes No Yes Tone Control No Dual Alarms No Battery backup Yes Built-in USB charger No Bluetooth No Smartphone Compatibility iOS Android No No Expandable No