M1 Bike Odometer:The 2.9-inch non-glare backlit screen introduces FSTN technology and is highly visible in sunlight. The LCD screen automatically lights up according to the sunrise and sunset times in different time zones. You can read data more easily and clearly during the day or night. High-quality tempered glass, don't worry about your fingernails scratching the screen. (Note: Be sure to set the time zone first when using it for the first time. Then all functions can function normally.)Dynamic GPS positioning, higher sensitivity, higher accuracy, faster positioning. The navigation chip is imported from Switzerland. GPS signals track your route. Once connected to your phone using Bluetooth, your journey will sync with the app, so you can see exactly what route you're using for your ride.ANT+ syncs sensors and apps to simultaneously record speed, , heart rate, power, route traveled, altitude, and more. Strava accounts can be added through our app to sync data on the ride computer. Help you monitor your workout data and provide you with a scientific training experience. (Search "" in Google Play Store or App Store to download the app)IPX6 wireless waterproof design. Cable clutter on handlebars is over. Can be used at any time during rainy days. 1100mAH large capacity, sustainable working time more than 30 hours.H1 Armband Heart Rate Meter:The heart rate monitor armband supports all devices with Bluetooth Smart and ANT+. Easy to connect with smartphones, tablets, GPS watches and bike computers. You can sync data to your favorite training platform, such as Strava.MORE ACCURATE DATA: To record the most accurate data, this heart rate monitor with elastic band will fit your arm perfectly, it will track and capture real-time heart rate. Meanwhile, the strap of the heart rate monitor is adjustable to fit all men andwomen.EXTREME BATTERY LIFE: Compared to traditional heart rate monitors, this battery lasts for more than 20 hours. There is no problem of sudden power failure, and it can be worn for all kinds of fitness training. No more bulky chest straps.Waterproof and breathable, IP67 waterproof design, to meet your daily indoor and outdoor fitness.Colour:blackMaterial:plasticPackage Contents:1 x Bicycle computer1 x Dual mode speed sensor1 x Heart Rate MonitorOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.