• Continuously monitors heart rate, speed, distance, pace & calories burned • Combines proven heart rate monitor & Training Center® software to create a highly integrated personal training system • Compact, lightweight & waterproof with easy-to-read display on an ergonomic wristband • Embedded GPS sensor provides basic navigation capabilities • Digital-coded heart rate monitor• Use for multiple sports–1 button changes heart rate profile • Includes rechargeable Li-Ion for up to 14 hours of use • Screen size: .92"H x 1.44"W display• Dim: 1.7"H x 3.3"W x 0.7"D