The Vintage Timex Heart Rate Monitor Indiglo Watch & Digital Transmission Strap is a unisex heart rate monitor designed for indoor and outdoor gym and training activities. It features a black nylon, plastic, and metal construction with an English language display. The heart rate monitor is powered by batteries with a battery life of more than 7 days. It provides measurements for heart rate, time, and calories burned. Additional features include a timer, alarm, and average heart rate tracking. The product is manufactured in China and is a vintage model.