Case Shape:Rectangle Display Information:Time Dial Display:Digital Placement:Dashboard Origin:Mainland China LED Color:Red/ Blue/ Green Shell Color:Black Total Size:54*27*30 mm/ 2.1*1.1*1.2 inch Backup Battery:CR1220 Mounting Holes Size:47.8*27.6 mm/ 1.9*1.1 inch Feature: High QualityThe car motorcycle dashboard digital clock is made of high-quality materials, first-class quality, waterproof, durable, and long service life. You can buy and use with confidence. Multifunction ModesThis car LED display clock has a total of four function display modes: hour and minute mode, second mode, timer mode and date mode. The large LED display intuitively can tell you what year, month, day, hour, minute and second it is. Special DesignThis car electronic clock has a luminous function, the light is bright but not dazzling, which is convenient for you to read the time in the dark. And it has a cover design on the back, which is good for waterproof and dustproof. Easy to UseThis durable car LED display clock adopts a one-button operation design, and it is easy to use with the setting operation instructions. Easy to InstallThe installation of this LED digital car clock decoration is simple and fast. Its input voltage is 4.5 to 30 V, and it is widely used in equipment and Cars, boat, planes etc. Specification: Shell Color: Black LED Color: Red/ Blue/ Green Mounting Holes Size: 47.8*27.6 mm/ 1.9*1.1 inch Total Size: 54*27*30 mm/ 2.1*1.1*1.2 inch Time Modes: Hour & Minute Mode; Second Mode; Timer Mode; Date Mode Backup Battery: CR1220 Power Supply Voltage: DC4.5-30V (Wide range, it is not recommended to use 24V battery for power supply.) Time Accuracy: 2s/day Working Current: Working Temperature: -10~65/ 14~149 Working Air Pressure: 80~106 KPa/ 11.6~15.4 psi Working Humidity: 10~80% (No Condensation) Sun Exposure: No Direct Sunlight Power Supply/ Button Wire Length: >120 mm/ 4.72 inch Package Included: 1 * Car Digital Clock