1)Display Date/Time, Week/ Second, 12 and 24 hours conversion2)Alarm clock3)Sleep function of 8 minutes4)Inside and Outside measure temperature,5)The time of the measure temperature is :20 seconds6)LED be in poor light7)Size:16.1x4.3x2.5cmPacking:Packing: bag/box/inner carton/outer carton300pcs/outer carton2 inner cartons/outer cartonCarton dimensions: 51x30.5x51.8cmGross Weight: 31kg/boxVolume: 0.081CBM producing area:China payment:T/T supplying capacity:3600pcs/day