Color Black Brand CHEERLINK Model J-W140 Quantity 1 Piece Casing Material ABS Wristband Material PU leather Suitable for Adults Gender Unisex Style Wrist Watch Type Sports watches Display Digital Backlight EL backlight Movement Digital Display Format 12/24 hour time format Water Resistant 50m Water Resistant Dial Diameter 2.9 cm Dial Thickness 1.6 cm Wristband Length 23.8 cm Band Width 2.5 cm Battery Watch: 1 x CR2032 battery (included) Cheat band: 1 x CR2032 battery (included) Other Features Local time(12/24 time mode); Calorie consumption; Wireless heart rate watch function(w/ heart rate chest belt); Stop watch; Remember step mode; Warning alarm when heart rate exceeds "preset heart rate" value(60~220); Alarm clock & Hourly beep. Packing List 1 x Heart rate watch (1 x CR2032 battery included) 1 x Chest belt (1 x CR2032 battery included) 1 x English user manual