Men Pedometer Calories Counter Pulse Heart Rate Monitor Watch CH044 Matrix electronic display screen & PMMA lens, More pervious to light effect, good insulation & Corrosion resistant. Auto Date,Heart Rate Monitor,Alarm,Chronograph,Water Resistant,LED display,Shock Resistant,Stop Watch,Back Light Using of High strength composite materials, Heat resistant, high temperature resistance, corrosion resistance.lightweight & wear comfortable. Humanized strap design, Full hole strap, suitable for all the wrist, more breathable, water permeability. 50 meters life waterproof(not for swimming and showering )