Alarm Clock LED Wall/Ceiling Projection LCD Digital Voice Talking Temperature Product Feature: 90Time Projection: under battery mode,press top key to tell the time, the backlight and projection onfor about 5 seconds .(when it connects to external power,the backlight and projection will be onallthe time.) The projecting lens head can be rotated front and back for 90 degrees. Voice Broadcast & 12/24 Hours: Featured with voice broadcast function, when you press top button, you will hear accurate time broadcast, great for elderly and disabled using. Besides, you can switch the time display mode into 12 or 24 hours according to your preference. Dual Chime Function: With a dual chime function, you can select a voice broadcasting mode you like: chime 1 is to broadcast time every hour in a whole day, while chime 2 is to broadcast time from 7 am to 9 pm every hour. You can also turn off the automatic time broadcast manually. 10 Minutes Snooze: The 10 minutes snooze function allows you to get 10 minutes extra snoozing time after the alarm ringing, giving your morning some relaxing time but still making sure you get up on time. And you can choose one alarm sound from multi sounds. Temperature Display & Power: Comes with temperature display function, you can know the exactly temperature at the time whenever you check time, and you can change the display mode into C or F according to your using habits. The clock is powered by 3 x AAA batteries (not included)or USB Cable. Product Specification: Type: LCD Alarm Clock Material: ABS Plastic Battery Type: 3 x AAA Batteries (Not Included) Color: Black Size: 8 x 8 x 10cm / 3.93 x 3.15 x 3.15in Weight: 156.8g / 0.35 lbs Package Size: 9 x 9.5 x 10cm / 3.54 x 3.74 x 3.93in Package Weight: 208.3g /0.46 lbs Package Included: 1 x LCD Projection Alarm Clock 1 x USB Cable 1 x User Manual