BRUNO Cloud Clock, Digital LED Table Clock with Date, Temperature, and Cloud Display, White, BCA030-WH

[Measurements]: Size: W164 x H103 x D43mm / Weight: 290g Functions: Continuous use time: Power saving mode, Always-on display mode, Temperature display, 12/24 hour display, Date display, Electronic sound alarm Power supply: 3 x AAA batteries or DC 5V (USB), 1 x CR2032 coin battery (for backup), Input: DC5V 1A (USB powered) Accessories: Dedicated USB cable (approx. 1m), 1 x CR2032 coin battery *For backup (already installed in the main unit) ※ Estimated usable time with 3 x AAA batteries ・Power saving mode: 10 lights per day...approx. 9 months, 20 lights...approx. 5 months, 30 lights...approx. 3 months ・Always-on display mode: Approx. 30 hours