Description Features: The car clock features the rechargeable battery whose power supply is solar powered mode, and it features the high-quality solar panel + high temperature resistant lithium battery power supply, which can be pasted and fixed without wiring.The car clock features the high temperature LED digital tube display, daytime and nighttime are clearly visible, with automatic brightne adjustment, soft at night, bright in the sun.The shell of the car clock is made of high temperature resistant material, which makes the clock suitable for the internal environment of the car, without worrying about summer exposure.High-efficiency solar panels, super long battery life.Large-capacity built-in lithium battery, no worry in cloudy days.High precision LCD display.Built-in clock, date, week.Car interior temperature display.No charge, no on/off, automatic display. Specification: Temperature setting range:60-100Power-on voltage:DC5VWorking temperature: -20~+80Storage temperature: -30~+85Frequency: 433.92MHz plusmn; 20.00MHzMaterial:ABS+PCSize:9cm/3.54inch x 6.5cm/2.56inch x 3cm/1.18inch. Package Included: 1 x Auto Digital Clock1 x Charging Cable1 x Manual NO Retail Box. Packed Safely in Bubble Bag.