Comfortable chest strap for heart rate measurement compatible with Polar, , products.The smart of soft fabrics and adaptive electrodes make it extremely sensitive toBeing an indispensable part of hear more→t rate monitor, it will detect and send your real-time heart rate to the smart phone accurately.The most popular heart rate belt in the world easy to use yet is very durable. Utilizes the snap attachment method.Color: BlackThis light garment is compatible with all heart rate sensors(ANT+, Bluetooth 4.0, 5.3K).With the chest strap based on high quality material, it can be attached to your skin closely.your hearts electrical signals, so the heart rate sensor can pick up your heart rate quicker and
