Baseball batting aid

Claim 1

A training device which can be worn by a user to teach the correct body positioning when hitting a baseball comprising: a) a baseball helmet having a top center and a sidewall and fitted within said sidewall with an adjustable sensing mechanism to sense vertical movement of the batter's head in relation to his shoulders during a swing, the adjustable sensing mechanism comprising a motion sensor, the training device further including a signal sensitivity adjustment switch mounted on the top center of the helmet and connected to the adjustable sensing mechanism by a mechanical connection for physically adjusting the position of the motion sensor in the adjustable sensing mechanism to sense a varying degree of sensitivity on a plane from vertical to horizontal; b) an audible sounding device connected to the sensing mechanism to alert the batter when his head is not correctly positioned in relation to his shoulders during the swing; and c) an electrical power supply integrated with the sensing mechanism and the audible sound device and wherein said electrical power supply has sufficient voltage to activate the audible sound device.