Positioning Speed:Within Auto BacklightAuto Time CalibrationPositioning system:BeiDou, GPS, GLONASS, GalileoWorking Temperature:-10-50(charging temperature 0-45)Model Number: CC400Stopwatch and Accessories: Wireless StopwatchScreen Type:FSTNScreen Size:1.9-inchWeight:55gWaterproof Grade:IPX6Number of Buttons:2Battery Life:20h+Charging Time:1.5h(Support charging while using)Customized :10Data Items:29 data items in 9 categoriesMaximum for Single Item:9Configuration ltems:25Wireless Protocol:ANT+,BluetoothColour:BlackMaterial:plasticSize:70.2x44.8x20.9mmPackage Contents:1 * Bike Computer SetOnly the above package content, other products are not included.Note: Light reflection 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.