4 satellite positioning systems: Beidou, GPS, GLONASS, GALILEO to ensure accurate positioning and tracking. Large 1.8-inch LCD screen with automatic backlight. IPX7 allows you to ride in all weather conditions. Real-time tracking and display speed, distance, trajectory, altitude, travel time and multiple data in the data. It supports third-party applications and is compatible with XOSS, Strava and Training Peaks, allowing you to easily share your rides with friends. Built-in 500mAh rechargeable lithium battery, fully charged for 2-3 hours and subsequent flight time is about 24-25 hours. Using the built-in barometer, you will know how high you have been riding on the longest climb or the way through the city. It can be easily installed on the handlebars using the provided mount and O-ring. Screen: 1.8 inch LCD APP: compatible with XOSS, Strava and Training Peaks Battery: 1 x 3. 7V 500mAh rechargeable lithium battery Battery life: 24-25 hours Charging time: 2-3 hours Waterproof rating: IPX7 Dimensions: 7.5 x 4.8 x 1.9cm/ 2.9 x 1.8 x 0.7in Package weight: approx. 150 grams