The Blade mQX was one of the most fun and inexpensive quad rotor helicopters on the market at the time. Here is my full review I did when it fist came out back in 2012.
Bladez Mycropodz Quadcopter is a super-nano scale remote control toy that enables you to fly and flip 360 degrees. It comes in a unique built
Phantom 4 Chinese New Year Edition
VideoDrone AP
X9
DCW-360
EX100
Phantom 2 + H4-3D