[How to Start] when you use bluetooth bicycle odometer for the first time, please press and hold the right button to turn on the device first, and complete the initial setting, like select the language unit temperature. Short press the left button to start recording, long press to end, the data will be saved automatically. Long press the right button to set backlight, key tone, auto pause, language, unit and temperature. [Bluetooth App Connection] When you receive NAV, please first bind the XOSS APP on your phone. NAV can connect heart rate, speed/cadence sensor, power, eTap electric change, speed, etc. With peripherals, you can quickly connect and easily set up the device, load the GPS track roadmap, record and analyze the cycling activity records. [Powerful customized dials&easy switching of sports mode] our cycling GPS units have up to 6 dial settings, supports 17 layout designs, and can display 39 types of data, which you can set on the walker APP according to your preference Long press the right button to enter the menu interface and select the motion mode. NAV supports multiple sports modes such as cycling and indoor cycling. [IPX7 Waterproof & 35 hours of battery life] NAV supports up to 33 hours of battery life (40 hours in low power consumption mode) for your daily use. It is designed with 4 buttons for easy operation. [Route planning & map navigation] NAV,which can store 1000 hours of riding records, can perform offline navigation by reversing the guidebook. You can see your riding track on the map page, and every route you ride can be fully displayed by ReAR. [Accurate Real Time GPS Positioning] NAV, which can store 1000 hours of riding records, supports GPS+BeiDou+GLONASS+GALILEO+QZSS, which can provide accurate GPS data all over the world. Combining the existing guidebook function can help you point out the direction, so you can get an easy cycling experience under the guide our GPS position.Sensor Type: Speed Sensor, GPS, Glonass Sensor, Cadence Sensor, Heart Rate Sensor, Galileo Sensor. Display Type: LCD. Screen Size: 2.4 Inches. Color: Black. Brand: XOSS. Date First Available: February 17, 2023. Best Sellers Rank: #163,658 in Sports & Outdoors. : B0BW49C2ZK. Manufacturer: ?xoss. Suggested Users: ?Unisex-adult. Material: ?Plastic. Model Name: ?XOSS NAV. Warranty Description: ?One-year warranty. Brand Name: ?XOSS. Package Weight: ?0.2 Kilograms. Item Package Dimensions L x W x H: ?5.87 x 3.78 x 1.54 inches. Mounting Type: ?Handlebar Mount. International Protection Rating: ?IPX7. Included Components: ?1 main unit, 1 TYPE-C USB cable, 2 rubber rings, 1 yardstick holder, 1 protective rubber pad, a user manual. Sensor Type: ?Speed Sensor, GPS, Glonass Sensor, Cadence Sensor, Heart Rate Sensor, Galileo Sensor. Display Type: ?LCD. Screen Size: ?2.4 Inches. Color: ?Black. Brand: ?XOSS.