Digital wristwatch equipped with an altimeter, barometer, and thermometer. - Model Name: PRO TREK - Functions: Altimeter, Barometer, Thermometer - Band Material: Rubber - Color: Black - Display Type: Digital Thank you for viewing. Accessories: None Operation: Defective (non-functional) I have stored this at home for many years. Since the battery is dead and I haven't checked its operation, I will consider it as junk.