Feature 1、The solar luminous car clock can only display the time (24 hours), date and week, or it can use other functions alternately. 2、The double‑sided adhesive adopts high‑quality transparent, seamless double‑sided adhesive film, which is resistant to high temperature and strong adhesive force. It will not damage the surface of the adhesive, will not leave traces of glue, and can be used multiple times. 3、Free wiring, no operation required, high‑quality solar panel power supply, rechargeable solar battery power supply + high temperature lithium battery power supply, fixed paste, no wiring required. 4、The digital LED picture tube is clearly visible during the day and night, and has an automatic brightness adjustment function, which is soft at night and under direct sunlight. 5、The Micro USB charging port can charge for a long time when there is no solar energy in the rain, and you can use the general for Android mobile phone charging cable. The built‑in temperature probe can reduce test errors. Condition: Item Type: Solar Car Clock Material: ABS Product Color: Black Light Color: Green, Blue, White, Red (Optional) Size: Approx. 12.5x8x3cm / 4.9x3.1x1.2in Weight: Approx.106g/3.7oz Battery: Built-in 370A lithium battery, 370 mah Charging Mode: Solar energy/Micro USB Quantity: 1pcs Package List 1 x Solar Car Clock 1 x Instruction Manual 1 x Double Sides Adhesive Tape Note 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.