1) With 4 ports USB hub 2) To show Calendar from 2000 to 2099, to display time, year, week, 12/24 hour format 3) With multi-color LCD display 4) With Alarm Clock 5) With Countdown Timer and stopWatch function, from 23:59:59 to 00:00:00 6) With Temperature C and F convertible, normal status 0°C to 50°C (32°F to 122°F) 7) Production dimensions: 140 x 99.4 x 105mm, LCD size: 67 x 35.5mm 8) Battery: CR2032 cell button included Packing: Gift box