Modern and technological vehicles have keyless entry. If such a car locks up, automatic locksmiths use a key analyzer or a VATS access key decoder to determine the car's electrical resistance values. They then use a mechanical code key cutter to create an accurate key without having to duplicate the original one. A long-range tool is a tool that goes through the car to press an unlock button inside the car or recover the keys that are locked inside the car.
Instead of entering through the door under the glass window, these tools enter the car through the door seal. If the key breaks and gets stuck inside the car lock, the locksmith will use a broken key extractor. Like many trades, locksmiths are in high demand and a well-trained locksmith can do quite well, especially in underserved markets. They can teach you many of the techniques and methods that locksmiths use if you're interested in pursuing a career in locksmithing.
When a locksmith uses these tools to enter the car door, you have a locksmith who has been well trained in opening cars.