Feature: 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: Power-on voltage: DC 5V Working temperature: -20℃-and80℃ Storage temperature: -30℃-and85℃ Style: C-01E Single Clock / C-05E Single Clock Size: 90x65x30mm Material:ABS colour:Black Package Contents: 1 x Car Solar Digital Clock Only the above package content, other products are not included. Note: Light shooting 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.