A good golf swing is music to the ears with the Sonic Golf System-1

What if you could really hear a good golf swing? Not the click of the ball or the swish that really good players make, but a signature of tones that's unmistakable. Well, that's exactly what the folks at Sonic Golf have done. They've come up with Sonic Golf System-1, which essentially measures speed and rotation of the golf club and translates it into sound. Golfers or teachers who use the device can listen to those tones through a set of hi-fidelity earphones, immediately getting feedback on what the club is doing in the golf swing. And good swings have a certain pattern and tone to them. Bad swings do as well.