The first one of these that came was defective, it would not charge the battery. Amazon replaced it with another one and it has a working battery. It has a very nice natural sound that works well to amplify my Kala Archtop Ukulele with pickup. It also amplifies my vocals through the Shure SM58beta mic. BUT it will not do both at the same time, in spite of having two separate inputs. SO, I can't use it as I'd planned, singing and playing the ukulele. It may be possible to link it to a second HOG 30, but I am exploring other options that will allow me use a keyboard and to get some vocal effects too. It is probably my lack of knowledge and not the fault of the product, but I think the advertising should clearly say that mic and instrument won't work at same time, it is one or the other.

In the meantime, to be fair, this is a fine and portable practice amp. I am learning a lot by listening to my own ukulele playing, working for clean fretting and smooth chord changes. So this product does have some use to me.

UPDATE:  I bought a "Y" cable to see if I could plug the mic and the instrument cable into one input to amplify both vocals and ukulele through one input. Does not work. Still gives precedence to one or the other.
VERY disappointed.
The first one of these that came was defective, it would not charge the battery. Amazon replaced it with another one and it has a working battery. It has a very nice natural sound that works well to amplify my Kala Archtop Ukulele with pickup. It also amplifies my vocals through the Shure SM58beta mic. BUT it will not do both at the same time, in spite of having two separate inputs. SO, I can't use it as I'd planned, singing and playing the ukulele. It may be possible to link it to a second HOG 30, but I am exploring other options that will allow me use a keyboard and to get some vocal effects too. It is probably my lack of knowledge and not the fault of the product, but I think the advertising should clearly say that mic and instrument won't work at same time, it is one or the other. In the meantime, to be fair, this is a fine and portable practice amp. I am learning a lot by listening to my own ukulele playing, working for clean fretting and smooth chord changes. So this product does have some use to me. UPDATE:  I bought a "Y" cable to see if I could plug the mic and the instrument cable into one input to amplify both vocals and ukulele through one input. Does not work. Still gives precedence to one or the other. VERY disappointed.