Practical in Use: The car clock features the vibration sensor for automatic switch on and off, and the clock automatically detects the vibration state of the car, and it turns on automatically. Heat Shell: The shell of the car clock is made of high temperature material, which makes the clock suitable for the internal environment of the car, without worrying about summer exposure. Brightness Adjustment: The car clock features the high temperature LED digital tube display, daytime and nighttime are clearly visible, with automatic brightness adjustment, soft at night, bright in the sun. Shading Hood Design: The design of the hood can effectively reduce the interference of strong light during the day, at night, the car clock can prevent the LED light from being projected on the front windshield, which does not affect the driving. Solar Powered Design: The car clock features the rechargeable battery whose power supply is solar powered mode, and it features the high-quality solar panel + high temperature lithium batter Notes of temperature measurement: The temperature probe is behind the clock, and the measured temperature is the temperature of the host working environment. (The temperature of the center console generally be much higher than the average temperature in the car) size:10.6cm x 7.3cm x 2.3cm Material:ABS colour:Black Package Contents 2 x car clock 2 x charging cable 2 x English manua 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.