I bought this little inexpensive tuner mainly to cut the feed from my guitar and my loop station on the fly, just incase I needed to unplug and change guitars in the middle of a song. The pedal itself is mostly plastic and sometimes creates static noise is bumped. As for the tuning part of it, when it registers the signal, it's very accurate. However, the low E on a standard guitar can be hard for it to pickup. It does however pretty cleanly cut the audio coming through it when it's turned on, which was the whole reason I bought it. So, I can't complain too much.
Accordeur chromatique à tout petit prix, mais pas très précis : bug souvent et met du temps à s'activer et à comprendre quelle note est jouée. Il vaut surement mieux mettre un peu plus d'argent dans un simple accordeur, parce qu'en live, c'est vraiment pas pratique !