Heart rate monitor chest strap. Unfolded belt length: 1.0 meters Reliability - Replacing the chest strap enhances and prolongs the life of the sensor. Electrode zones can quickly capture your heart rate data, providing a stable connection and accurate data to help you maximize your workouts. If you work out a lot, we recommend having an extra replacement strap. The distance between the two snaps is about 45mm. Function: Conductive and stable. Soaking in water, cleaning surfaces will not affect. Resistance: below 1K, low resistance Appearance: exquisite and beautiful, rich in color, Strap: Comfortable, convenient and simple. Uses: In your exercise, weight loss, fitness, fitness, running, marathon, mountaineering... According to the heart rate to scientifically guide the exercise to achieve the target exercise effect, you can accurately measure your heart rate in all sports, and feedback the situation during exercise Maintenance and cleaning of the heart rate elastic band: 1. Be sure to use room temperature water or neutral detergent to clean the chest strap, and dry it with a soft towel (do not use alcohol, rough material scrubbing, or other volatile chemical detergents to wash, to avoid damaging the conductivity of the heart rate chest strap ) 2. Do not put the chest strap into the washing machine, In a dehydrator, or in a dryer, avoid damaging the circuit or causing the heart rate chest strap to melt and open due to high temperatures 3. Do not iron 4. Avoid high temperature violent pulling The Bluetooth 4.0 wireless heart rate signal transmitter chest strap is a device that detects the heart rate signal and sends the signal to the wireless receiving terminal through the Bluetooth 4.0 method. At present, it is mainly used for iphone 4s or above or most Android models. Its excellent highly electronic solution, highly integrated IC, it can accurately detect heart rate, and has excellent anti-interference ability. The innovative design and the use of new materials make the detection ability stronger than the traditional design, and it is more comfortable to wear. And it is designed to be waterproof to 30 meters, so even when exercising and sweating or cleaning, the chest strap can be kept intact. Function: 1. It adopts the transmission method of Bluetooth 4.0, and is used with IPHONE or Android models. Download the free app from the APP STORE or Android app store 2. Low-resistance special conductive material, for a heart rate transmitter using a CR2032 battery, low-power operation can work continuously for 10 months 3. Ultra-thin and comfortable, so that you will not feel uncomfortable when wearing it for a long time. How to wear a chest strap 1. Before wearing, check whether the length of the chest strap is suitable for you. If it is not suitable, you can adjust the length of the elastic strap through the elastic strap adjustment buckle to achieve a comfortable wearing feeling. 2. When wearing, buckle the heart rate transmitter on the hidden buckle of the heart rate belt to confirm the left and right direction of the heart rate transmitter (the heart rate transmitter is directional and has L/R to distinguish) and keep the transmitter in the middle of the front of the chest, Attach the buckle to the other end of the heart rate chest strap. 3. When wearing, please keep the heart rate transmitter facing out, and ensure that the conductive electrodes of the heart rate elastic band are directly attached to the skin. 4. Because human skin is dry, oily, etc., in order to achieve a good conductive effect, it is better to moisten the heart rate conductive electrode with water. 5. When the signal is not good, the battery should be replaced in time. When using the chest strap in the future, it is found that the transmission distance is shortened or the signal is not good. When the conduction distance does not exceed 70cm, it means that the battery power is almost exhausted, please replace the battery , It's not that the heart rate elastic band has poor conductivity (except for high temperature, violent pulling and other destructive behaviors). Notice: The material is affected by the dryness of the skin. If the detection is not sensitive, please wipe the special material of the conductive electrodes on both sides of the transmitter with a rag to ensure that no stains remain on the surface. If there is a lot of chest hair, please wipe some water on the conductive electrodes on both sides of the heart rate elastic band. If there is sweat during exercise, it is not necessary to moisten it with water. This is because the strong insulation of human hair is not conducive to the collection of heart rate signals by the chest belt, so it is necessary for people with excessive hair to use water to improve the conductivity of the heart rate belt. My package includes: 1 X Chest Strap.