This is a custom built Enclosed Case (Pelican style) remote with a C-OFDM Radio with video, audio, and control data. The remote has a 7 inch LCD with joysticks, batteries, regulators, etc. It also includes the radio and components for the robot.
The InvenSense MPU-6050 sensor contains an accelerometer and a gyroscope in a single chip. It is very accurate, this sensor is used in self balancing robots, drones, smartphones, etc. The sensor uses the I2C-bus to interface with microcontroller.