Tonerite 3G UkuleleOne of the secrets of great sounding vintage instruments is the fact that they have been played in for thousands of hours. The ToneRite accelerates the play in process by using a set of sub sonic frequencies to simulate the same physics as long term playing. Simply attach the ToneRite whenever you are not playing and expect to hear a dramatic increase in resonance, balance and range after only a week's worth of use. Subsequent treatments will help