:rolleyes:Shakke control works on the sensor, and the sensor might be similar to that is used in automobile central lock unit sensors-based on the principle of vibration, or motion, where the system might include a tiny cylinder consisting a tiny ball inside the cylinder and both ends of the are closed, so when u tilt or shake the phone, the ball runs from one end to other end making vibration which send the signal inturn manage the music, this is how it works I think. shake shake! please, press thanks in the rigt side of the post if u find this information post useful, do not post thanks seperately. ;)