Brand N/A Quantity 1 Piece Color Black Item Shape Round Dial Window Material Acrylic Casing Material ABS Band Material Rubber Suitable for Adults Gender Unisex Style Wrist Watch Type Sport Watches Display Digital Movement Quartz Display Format 12/24 hour time format Water Resistant Daily Water Resistant (not for Swimming) Dial Diameter 35 mm Dial Thickness 15 mm Band Length 245 mm Band Width 22 mm Battery 1 x 377 (included) Features Wireless heartbeat signal transmitted from chest band frequency at AM 5.3KHz reminding people to control heartbeat during sport; Time display: hour minute and second; With alarm function; Alarm sounded when heart rate exceeds the upper and lower limit values (60~220); Timing function: Max. time-keeping is 23h 59mins 59s99; 12 / 12 hour format; Chest belt: 66~95cm; Precise time display; Sensible heart rate test Packing List 1 x Wrist watch 1 x English user manual 1 x Chest belt (1 x CR2032 included)