Yes, a laser keyboard is real. You can purchase them online or in some stores. They use a laser to project the image of a keyboard onto a flat surface, and you can then type on the keys just as you would on a regular keyboard. Some models also include a mousepad, so you can have an all-in-one input device.
Laser keyboards are great for people who need a mobile input solution or don't have enough space for a full-sized keyboard. They're also popular with gamers, as they can be used on any surface and don't require any special drivers or software. However, they do have some drawbacks. First, they're more expensive than traditional keyboards. Second, thekeys aren't physical, so it takes some time to get used to typing on them. Finally, they require batteries or an external power source, so you'll need to keep an eye on your power levels if you plan on using one for extended periods of time.