Easy to Read: : Built-in accuracy compensator for adjusting deviation which makes the reading more precisely, quick response and accurate navigation. Easy to read precise dial Adjustable mounting bracket and visible lubber line for easy directional reading.Bracket Mounted Compass: : This digital car compass supports the charge of the car and boat and comes with mounting accessories, the navigation compass can be mounted on deck allowing compass to remain at proper viewing angle for the accrate directions.Application: : Especially for cars and boats navigation, compass works well to navigate without any other source of energy or tools Ideal for boat, boat, truck, caravan and so on.Premium Quality: : Made from ABS material, this compass is waterproof, corrosion resistant, so that it is very suitable for sea boats or marine vehicles.Portable: : With compact size, this compass is very portable, and it is easy to install or use.