Mechanical Universal Portable Guitar Piano MetronomeBecome the best pianist of all using this piano metronome that we bring in a special offer for all our clients! It doesn't matter if you are an apprentice or an expert, this product is just for you! This incredible device has a special mechanism that indicates the tempo of musical compositions, allowing you to maintain a constant pulse when executing musical works. With it you can not only maintain the tempo but also the rhythm, helping you practice