1* Smart heart rate monitoring strap, heart rate waterproof and comfortable woven strap, elastic elastic, outdoor sports Bluetooth heart rate chest strap Product Description:Product Name: Heart Rate Chest StrapProduct Specifications: Length: 1 meter, two-hole spacing: 45mm, supports universal heart rate bands with a center distance of 45MM, specifications: Chest strap only, opp bag packaging. Material: Nylon/polyurethane fiberHeart rate chest straps are suitable for sensor monitorsSpecification: Black * Chest strap onlyFeatures:Made of soft nylon material, with adjustable size, easy to use, durable, efficient and stable, and hand-washable.The soft material and adaptive electrodes make it extremely sensitive to cardiac electrical signals.It is an important component of the heart rate monitor. It will accurately detect and send your real-time heart rate to the receiving terminal.Comfortable and adjustable elastic band. It adopts the snap-fit connection method. It is simple and convenient to use.The chest strap based on high-quality materials can fit your skin closely.Applicable to all heart rate sensors (ANT+, Bluetooth compatible with 4.0, 5.3K).Applicable to Alatech/ Applicable to Echowell, Polar/ applicable to GPS sports watches, Wahoo/ applicable to Runtastic/ applicable to Micoach/ applicable to Strava mobile APP and other devices.Only the chest strap is included. Other accessories are not within the scope of the demonstration.Specification:Item type: Chest strapMaterial: NylonColour: BlackTwo snap distance: approximately 45mm (Please check the distance of your launcher and confirm compatibility)Quantity: 1How to wear a chest strap:Before wearing, please check if the length of the chest strap suits you. If it doesn't fit, you can adjust the length.2. When wearing, place the transmitter in front of your chest as shown in the picture, then wrap the other end around your body and pass the button through the other end of the transmitter.The package includes: 1 breast strap