Several! I recommend starting out with something not too overly expensive (you'll crash), easy to repair (you'll crash) and sturdy (you'll crash). Oh, did I men

Several! I recommend starting out with something not too overly expensive (you'll crash), easy to repair (you'll crash) and sturdy (you'll crash). Oh, did I mention you will crash? TX: Turnigy 9XR or FrSky Taranis (more expensive, but a good investment since you probably won't crash this one...) Frame: any 330 size frame will do. This one for instance: https://www.banggood.com/DJI-F330-4-Axis-RC-Quadcopter-Frame-Kit-Support-KK-MK-MWC-p-943370.html https://www.banggood.com/DJI-F330-4-Axis-RC-Quadcopter-Frame... Motors: 2212, ca 1000kv will make it pretty sporty ESC: 30A This combo set is only 19 bucks: https://www.banggood.com/XXD-2212-MotorZTW-AL30A-Brushless-ESCPropellers-KV1400-KV2200-p-971190.html?rmmds=search https://www.banggood.com/XXD-2212-MotorZTW-AL30A-Brushless-E... Flight controller: Naze32 or CCD3. Doesn't really matter. This one is fine (it's in my latest quad) and is only 11 bucks: https://www.banggood.com/DALRC-NAZE32-REV6-MPU6050-32-bit-6-DOF10-DOF-Flight-Controller-for-Multicopter-p-1020774.html?rmmds=search https://www.banggood.com/DALRC-NAZE32-REV6-MPU6050-32-bit-6-... You'll need extra props, wire and nuts and bolts. 400 dollars is totally achievable!