China-made toy-drones

There are many drone factories in Shenzhen, China. And there are many models available in Hong Kong. The following is my first drone or quad-copter.  Day one I lost the control of my first drone and hit it strongly against the ceiling of my room and the shaft of the two tiny motors (coreless motors) were broken. No use any more so I opened it to check the inside. Actually it has no cover so just broke it apart. The major three ICs were found on this mini quad-copter. This is a high-tech toy.

ST Micro MPU 32F030F4P6
Gyro IC M688(099LB1L122)
2.4G Wireless Tranceiver IC XN297L

This will continue.