Outdoor Cycling Reflective Safety 3-Mode LED Nylon Armband w/ Buckle - Blue (2 x CR2032)
Three modes: fast strobe slow strobe and steady on; Includes 2 x CR2032 batteries; Working time: 60~80h normal use: 2~3 months; Water resistant and easy to use; Got CE RoHS and EN471 certification; Suitable for outdoor sports running at night; A good gift for your relatives and friends.