Originally Posted by: fedechiniI am looking for a practice tool I can use at the office to work on scales and chords "quietly". I am considering a product called POCKETSTRINGS and I was wondering if anybody has any experience with this product.

Looks like they have two different models: One for scales and one for chords. http://www.pocketstrings.com/models

Though I would think the scales version would be better since you can also practice chords on it.

For $30 might be worth a shot.