MicroInfinity Capt® is a low cost motion capture system for games, VR (Virtual Reality) and animations. MicroInfinity Capt® measures attitude of the motions in 3 dimensional space without external help. Instead of using mechanical, optical and magnetic subsystem, MicroInfinity Capt® uses self-contained system and provides the motions continuously in digital format. Applications of MicroInfinity Capt® include tracking subsystem of HMD (Head mount Display), input devices of 3D games and VR. Self-Calibration procedures and simplified error reduction filters are employed to enhance the accuracy of the measurements in dynamic environment. MicroInfinity strongly recommends Capt® for motion capture applications.