The Official Peloton Heart Rate Monitor (PL-HR-C-01) Bluetooth, ANT+ Chest Strap is a versatile fitness technology device designed for tracking heart rate during various indoor and outdoor activities such as gym training, biking, and running. It features a sleek black design with a water-resistant nylon material chest strap for comfortable wear. The wireless heart rate monitor is compatible with both iOS and Android operating systems, providing real-time data transmission for an accurate and efficient fitness experience. With a rechargeable battery and adjustable strap, this heart rate monitor offers convenience and flexibility for unisex adults looking to optimize their workouts.