12/24 format selection alarm clock; with snooze function and 8 music; Display time, year, month, date, week and temperature Material: ABS Unit Size: 19*3.4*10 (cm) Power Supply: AAA battery 2 pcs Packing Info. :53*34.5*40.5 (cm),40pcs/ctn; G.W.: 7.2kg or 7.8kg(with battery)