Sportline Elite Cardio 660 Men"s Heart Rate Monitor Watch with Coded Strap, Black: * Heart rate and percentage of max display * Calorie and fat-burn tracker * Fat-burn zone indicator * Workout memory * Coded heart rate transmission * ECG accurate * Water resistant to 50 meters * Dimensions: 8.75"L x 6"W x 2.75"H * Battery type: lithium primary * Model# SB1446BK * 5-year warranty