• Easy to set: Battery Operated. This alarm clock has four buttons: Two dials to set clock and alarm time, one alarm switch and one nightlight button. This alarm clock is very easy to set and use, suitable for most people. • Built – in backlight; Easily press the night light button behind the clock to have a soft yellowish light illuminate the clock face for a few seconds to see what time it is in the dark, convenience, energy-saving, and without hurting your eyes with the bright phone screen. This alarm clock also come with a large round face for easy reading during the day time, a great choice for daily life. • Quartz Analog Alarm Clock for Heavy Sleepers old design and a mini-hammer offer an extra loud ringing, high sound, perfect for heavy sleeper, hearing impaired even deaf. Without snooze function, good wake-up alarm for trouble waking up. Best for Kids and Students. • Extra loud alarm sound; This alarm clock with twin bell, loud enough to wake you up, idea for heavy sleepers and hearing impaired. No snooze button and 5 minutes of constantly alarm noise, great alarm clock for people who have difficulty waking up. This loud alarm clock is a nice gift for your family and friends. • Retro style; Beautiful vintage twin bell alarm clock, harmonious collocate with your desk and bedroom, retro style takes you back to 80's.