Controlling four servos would require power that the Arduino may not be able to supply if it's only power source is its USB connection to the computer. Thus, I used a separate 5V DC power source.

The transmitter circuit should be small enough to fit on the back of my hand but with enough space to fit all the components. The MPU6050 and the Arduino Pro Mini can be powered from 5V but the NRF24L01 can't unless you buy a special adapter. So I decided to add in a 5V to 3.3V converter module which uses the AMS1117. Here's what my transmitter board looks like on top of the glove: