Waterproof, splash-proof, dust-proof, , without fear of wind and rain. Four Satellite Positioning : Support GPS, Beidou, Galileo, and Glonass global navigation . Fast positioning within , allowing you to take step with . Calculate the sunrise and sunset time based on GPS information, support Bluetooth and GPS automatic time calibration, and the time information is accurate. (Note: The positioning speed is affected by the weather and other conditions change.) Colour:black :plastic type:C206 Pro Package Contents: 1 x Bike GPS Computer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.