I use it since yesterday ^. ^!
Guitar Tuner is a 6 / 7 strings and 4 strings.
Quartz has a notch, and a micro mini speaker and one between Jack 6.35.
A model is Made In China.
I love its design and small LEDs that flash,
on the other hand, sometimes it works and seems strangely err string: /?
I also have a tuner Matrix (https://fr.audiofanzine.com/produits/avis/index% 2Cidproduit 2C29726.html%) that I find much less.
I pay within 20 which is not expensive at all.
I think it's a good product. I think I would do the same choice ...