Total fiasco. The battery was partially charged so the bluetooth didn't work. The battery died after three nights of playing. Huge delivery problems, couldn't arrange when I was home for three days, had to arrange it with the delivery service. The instrument looked great, but was delivered without an adapter and therefore now sits completely unnecessarily. I have played with a foreign but universal adapter, and have been instructed on both volt settings and polarity. I definitely do not recommend anyone to purchase this Slovakian-Chinese product. Huge disappointment. Sitting over a tool from my Slovak brothers makes me want to cry and smash someone's face in. Mgr. I don't return the goods, I don't have time to fly around and throw money for postage, I'm not a business scumbag, unlike you, apparently. Learn to do business fairly and with quality goods, shy away even at a discount from offering anything you don't take quality guarantee for. Just remember to plead that it's my own fault if I didn't buy an adapter. I'm done not only with your eshop, but also with any contacts of anything via Slovakia or from Slovakia. It's bullshit