The Wahoo TRACKR Heart Rate is a reliable and accurate heart rate monitor with chest strap, which distinguishes itself thanks to its battery, which has a 100 hour battery life and can be charged via USB-C. With the LED indicators you'll always be well aware of the monitor's battery status, and you'll never be surprised by an empty battery again. Extensive connectivity The TRACKR Heart Rate features both Bluetooth and ANT+, so you can connect it to your phone, cycling computer, sports watch, indoor turbo trainer or other devices. With the Multi-Bluetooth feature, you can connect this heart rate monitor with up to three devices at once. Easily and quickly upload your TRACKR HR heart rate data to Strava, Zwift, TrainingPeaks or other training apps. Plus, the comfortable chest strap is adjustable and is suitable for people with a chest circumference between 67 and 127 centimetres. Battery life and waterproofing The internal lithium ion battery can be charged using the included USB-C charging cable and ensures a battery life up to an impressive 100 hours. Plus, the LED indicators keep you up to date on your monitor's battery status, so you'll always know when it needs charging. Plus, the IPX7 waterproofing rating ensures you'll effortlessly gather heart rate data, even during sweaty training sessions or rainy bike rides!