... for customers to choose a alarm clock. 1.Checking the appearance first: the color of shell is ... scale is homogeneous and writing is clear. 2.Checking the sensitivity:Looking the battery icon of product, ... that is explanting the normal of walking. 4.Checking whether rammer: Turn the hour hand,minute hand ... Clear,resonant,no hoarse,no empty sound. 7.Checking the tightness of spoon: The tightness should be ...