Small alarm clock (5.6 x 1.9 x 2.9 in) with an extra USB port enables you to charge your phone giving more space for anything else you'd have on your small beside table. Easy Time & Alarm Setting, even no need instructions. Easy Snooze: Press anywhere of the clock top. Get your comfortable brightness of the digits with 0-100% dimmer slider; and wake up to adjustable alarm volume from 30-85db. Reacher 4" red digits alarm clock backs 45-day money back, 18-month warranty, and friendly customer service.