The Proto X is among the tiniest drones available in the world.
The cost with this small drone is about $38. It’s one of the most affordable quadcopters it is possible to purchase (but affordable is’t always an excellent thing). Since the Proto X is not so expensive, there exists an opportunity you could purchase a flawed one, but you could always simply send it back.
It’s undoubtedly an excellent toy if you simply need something to bash around your house, although I ca’t actually advocate this quadcopter if you’re serious about getting into the hobby.