COOSPO HW706 arm band heart rate monitor with real-time heart rate tracking. Used only once during indoor cycling at home. I am selling it because I don't have a chance to use it. Please understand that it has been used once. The COOSPO HW706 is an arm band heart rate monitor with an optical heart rate sensor for accurate real-time heart rate monitoring. It supports Bluetooth and ANT+ connections and can be linked with various devices such as smartphones, GPS watches, and fitness equipment. Main Features Accurate Monitoring: Provides real-time and accurate heart rate data during running, cycling, and other aerobic exercises with the latest optical sensor technology and proprietary algorithms. Wide Compatibility: Compatible with both Bluetooth 4.0 and ANT+, allowing connection to popular fitness apps such as Wahoo, Run keeper, Zwift, and Strava, as well as sports watches like Garmin. Long Battery Life: The built-in rechargeable lithium battery (90 mAh) allows for up to 20 hours of continuous operation on a single charge. LED Indicator: The LED light displays the connection status, making it easy to check the operating status (fast blue flashing when not connected, slow blue flashing after connection is established). Waterproof Performance: IP67 waterproof certification, allowing use in sweat and rain. However, it is not suitable for swimming. Comfortable Fit: Comes with a comfortable fabric strap that won't get in the way during exercise. Purchase Information - Brand: COOSPO - Model: HW706 - Bluetooth Support: Bluetooth & ANT+ compatible - Function: Real-time heart rate tracking - Accessories: Charging cable, strap Thank you for viewing.