Abstract: A sport paddle is disclosed having a circuit board substrate inside the handle which has a sound light circuit, a counter circuit, and a radio circuit. The opening and closing of the sound light circuit and the counter circuit are controlled by a vibration switch which is actuated. The sound light circuit is connected to an elastic concussion switch to give an amplified reverberatory sound and simultaneously cause a luminous body to illuminate whenever the ball is hit by the paddle. While the elastic concussion switch is connected, the counter circuit is also connected to display on a display screen the aggregated number of times of the ball has been hit. A radio circuit is also provided on the circuit board substrate inside a the handle of the paddle. The opening and closing of the radio circuit is controlled by a switch which allows the user to listen to the broadcasting of a radio station whether or not the paddle is being used in sport.

Abstract: A baseball bat having the functions of resonators and microphones is designed to be hollow and has a receiver cup disposed at its inner top end in such a manner that a spring may be hooked to its bottom while the other end of the spring is hooked to a tuning bar fixed at an end cap fittedly adhered to the bottom end of the bat. Besides, a plurality of sound-amplifying holes are formed on the surface of the bat at proper positions. Whenever the bat is vibrated by external force, the spring inside it shall vibrate accordingly and the sound-wave so produced resonates within the hollow bat which serves as a resonance box. When the sound-wave passes through the sound-amplifying holes on the surface of the bat, a special striking tone shall be produced. Such special tone can be produced either when the bat stikes a ball or when the bat is purposely vibrated or waved. When speaking into the receiver cup, the wave of voice may be amplified through the resonance effect of the hollow bat.