Which guitar G7 frequency shifter is better?

In fact, the effect of shifter is similar. That is, there will be differences when the position is high. If you don't perform too much and pursue perfection, . . Mainly depends on your piano. Of course, an expensive clip with an expensive piano is more beautiful and durable, and does less harm to the piano. See if you like ~ 100, which is already very expensive. Let's take the first one ~ haha.