The Skechers Go Run Universal Connect Wireless Chest Belt is the best running partner on the track. Crafted with lightweight plastic and a hands-free design, this smart workout wear lets you monitor your heart rate and stay motivated with music at the same time. Additional Information: * To use, simply plug the included smart key dongle into your smartphone jack * Lightweight Skechers brand design * Manufacturer"s warranty included - see Product Guarantee area for details * Sends continuous heart rate display to smartphones * Picks up heart signals up to 0.8 meters away * Listen to music while using iPulse feature * Durable lightweight plastic * Manufacturer"s warranty included