Stylish Digital Sports Heart Rate Monitor Wrist Watch - Black + Silver (1 x CR2032)
Model: J-W121 - Color: Black + Silver - Material: ABS + PU - 12/24 time display format - With alarm function - Heart rate monitor - Chime on every hour - Stopwatch function - Alarming when heart rate go beyond the user preset upper heart rate limit - EL backlight - 30~50m water resistant - Powered by 1 x CR2032 battery (included) - Belt circumference: 40cm - Comes with heart rate belt (powered by 1 x CR2032 cell included) & English user manual