These helicopters are not worth the money. The supposed “gyroscopic” stability does not work. The helicopter just takes off, gets a few inches to a foot off the ground, spins rapidly and crashes. Coaxials are supposed to be self-balancing to prevent the rotating problem, but they always need a little extra balance from the tail motor. With no spin from the rear motor, or effective gyroscope to balance the rotation, the helicopters are unfortunately incredibly unstable. There’s no joy in flying these helicopters. They do not bring me love or good vibes 
unfortunately it’s the worst purchase I’ve made on Woot. For just a few more bucks, you can actually get a pretty decent micro helicopter for indoor flying. Look for at least a 3 channel if you are a beginner, 3.5 channel if you want more control and fun flying indoors, 4 or 6 channel for outdoors. This helicopter isn’t even really a 2 channel based off the controls I saw (just up and down if the helicopter even responds to the controller and/or doesn’t crash before receiving input)