This item was kept unused at my grandfather's house. It comes with the box and instruction manual. The main unit is unused, so I haven't been able to check its operation. A CASIO digital wristwatch with calorie calculation and distance measurement functions. - Brand: CASIO - Model: JOG & WALK 880 - Water Resistance: Water resistant - Functions: Calorie calculation, distance measurement, pace measurement - Material: Stainless steel back - Accessories: Box, instruction manual - Color: Black