... also widely used in sports, workshops, public places, supermarket hall, large shopping malls, bus, warehouse, classroom, bus stations, train stations, subway ... / DC adapter, transformer support 100-240V, 50/60HZ.Specifications & Packaging: Package Contents100% Brand New in Retail Packaging 1 x Red/Blue ... )320*90*56mm/12.6*3.5*2.2inch Digital Large Big Jumbo LED wall desk alarm with world time travel ...