Mike it's a great little quad it flies excellent if you're having problems with it I would contact whoever you bought it off of and let them know what the problem is there's not much to it it's easy to work on and easy to fly

Mike I think the motors or the gears are bad because I'm having the same problem I believe it's the gears they need to update this drone it's a great grown but it has some little flaws like plastic gears which runs down really easy they should have made them out of metal

Mike yes it does have Wi-Fi fpv

Mike they are brushed motors

Mike battery comes with a 3.7 volt 1100 milliamp battery Plus you can order extra batteries if you want

Mike the camera is on your app when you download it to your phone but you don't have to fly it with your phone you can fly it with controller and use the app to record your video to your phone