dreamsky alarm clock radio for bedroom - fm radio clock with battery backup, usb charing port, 1.2 inch bold digit 0%-100% dimmer, adjustable alarm volume, temperature, snooze, sleep timer, 12/24h dreamsky <b> decent alarm clock with large, clear display </b><br> clearly view the time on the large and clear lcd screen with nice blue illuminated jumbo digit. no squinting to read the time, even without your glass.<br> decent look, clean, simple, aesthetically pleasing design. not too big, not too small, décor even as additional decoration. <br> <br> <b> adjustable brightness control </b><br> with the dimmer button, you are able to adjust the brightness from 100-0 level comfort view by turning the dimmer wheel, or turn the brightness completely off for night sleep. no light, no complain, clock is still running. have a good rest! <br> <b> enjoy fm radios </b> <br> single on/off radio button, tuning in your favorite channel with 0-15 level volume adjustment. built in high quality loudspeaker, the sound is loud and clear, enhance your listen experience. <br> <br> <b> programmable sleep timer </b> <br> fall asleep to the radio using the programmable count down sleep timer. 10-120 minutes optional. <br> <br> <b> gradual alarm with adjustable volume </b> <br> the gradual wake alarm feature starts with a subtle, low volume and then gradually increases to a reasonably high level in order to gently wake you up from sleep.<br> alarms sound can be adjusted to your desired level whatever select wake up to buzzer or radio. buzzer with 3 level adjustment (high, medium, low). radio with 1-15 level adjustment. <br><br> <b> snooze button </b> <br> snooze function will let you catch an extra shuteye. 9 minutes interval to mute the sound for every click button, which can be repeated to one hour until turned off. <br> <br> <b> usb charging port </b> <br> the labelled “out “ usb port for other smart device charging like cellphone, tablet etc. very handy and convenient. <br> <br> <b> battery backup </b><br> an optional backup battery keeps the clock working during a power outage.