Review on 🚁 HUBSAN H501SS X4 Drone - Controller-Free Experience (H501S-36) by Cody Bowie

Altitude and xy position are held by GPS. View telemetry on screen. It's hard to beat the price of all of these components, even if you build your own. Essentially tie and fly. Pretty quiet drone and powerful. Relatively fast if you disable GPS mode. Don't forget to order the battery and micro SD card and bind them to the controller (you'll need one of those, of course).