Heart Rate Watch 1, Material: plastic,electronic component 2, Min.Q'ty: 240 3, BEAUTIFUL! UNIQUE DESIGN! Heart Rate Watch1, ... "(W)*2.4"(H)2, Material: plastic,electronic component3, Min.Q'ty: 2404, FASHION, POPULAR!5, Colors: Red6, Availability: Backorder1 ... many functions such as timing, alarm clock, stopwatch, heartbeat measurement, calorie calculation and date & time display. If have any question, ...