A: The C-Car! Keychain memorizes and shows you a directional line that connects your car and the Exit door from which you intend to come back. Many other cars can be on this line, but there is only one line that connects your car and the Exit.

A: The accuracy could be as high as you could imagine but for many practical situations high accuracy is not required and not worth the time you could spend in maintaining that kind of accuracy. Many factors can affect accuracy, such as your own skills and patience, massive metal constructions around you, how far your car is etc.
Please, take a couple of minutes to practice with C-Car! and getting to know this gadget. Then the use of this Keychain will always be fun for you. For instance, to figure out how sensitive this device is, hold it horizontally in your hand and turn yourself around slowly. You should notice that the internal dial tends to keep a certain position no matter what position you are in.
Try to align the logo by rotating the wheel back and forth slowly and accurately enough so that the internal dial is in a stable position.
Try to align the logo using one hand only.
Try to align the logo while you are walking from your car.
In many occasions you don't need very accurate results from the C-Car! Even knowing such things as going right, left, or straight can be good enough for many people and many situations. Your choice of how accurately you lock and retrieve your car's position depends on several factors, such as whether you are in a hurry or not or how far your car is from the Exit.
Try to "find" your car by pointing your Keychain in different directions until the logo is aligned. Don't rotate the wheel!!
Come closer to a massive metal object, such as a car, and observe how the dial may change its position. All these funny exercises will give you a sense of how to use this device - the same as when you use a fork in your everyday life, for instance.
Also, please, keep in mind that in many cases accuracy in retrieving a right direction to your car depends on how accurate you were when setting your car's location in the first place. If you inaccurately fixed your car's location, most likely you won't be able to find the right direction to your car

A: One of the reason to loss of accuracy can be caused by interference of big metal objects with your C-Car!, such as big cars in close proximity (one-two steps from you), massive metal constructions in or near some commercial buildings, such as airports, and so on. Just stay 2-3 steps away from any car when locking or unlocking your car's position or try to lock your position when you are inside your car.

A: The C-Car! has no distance limitations. Your car can be many miles away from you and the C-Car! will show you the right direction. Nevertheless, the further the car is, the more chances you have to deviate from the right direction. Also, rarely will you have the chance to go straight to your car. Almost always, there will be some obstacles between you and your car, such as other cars. The best way to reduce error is to check back and align yourself with the direction to the "Exit" on your way back to your car. The Car Locating Keychain always shows you the directional line connecting your car and the Exit from which you started your car search. Simply point your Car Locating Keychain in various directions until the logo is lined up. If it doesn't point to the Exit, then you are on the wrong directional line. Do NOT rotate the wheel on the C-Car! when seeking your car!.

A: The C-Car! contains some magnetic parts inside - though they are not harmful to the credit cards. If you have some other magnetic materials close to it, your keychain may malfunction. For instance, if you have a stainless steel pocket knife or magnetic split key ring attached to your C-Car!, every time the knife or the magnetic ring is in close proximity to the C-Car!, it will distract it from correct operation.
Also, we have to admit that our current design of the C-Car! makes some people play with the wheel by rotating it back and forth. If you are not using this keychain for the car seeking purposes, that's totally fine. Nevertheless, if you locked your car position by rotating the wheel once and then played around with the keychain by rotating the wheel absent-mindedly, then you can't expect to find your car using this keychain. The car's position will be lost in this case.

A: Absolutely! In fact, you can use it for finding anything, including buildings, people, kids (if they don't run away too fast…), directions, return paths in strange cities and etc. There are many other implementations for the C-Car! !