DJI SPARK / MAVIC REMOTE BOOSTER

The curvature of this design is based on an user from HK: https://www.imnobby.com/2017/08/21/dji-spark-%E4%BF%A1%E8%99%9F%E5%A2%9E%E5%BC%B7%E5%99%A8/
According to his reference the curvature has better calculation.
Also I've made the antenna slot more accurate. It'll be less scratchy when you put it on.