At first glance, it looks like an ocarina, but it's a Rekrina. The ocarina, which seems easy to play with its simple tone, is actually difficult. But the Rekrina is genuinely easy to play, and produces a simple, soothing tone. Please read the text in the photo. The instruction manual is inside the box. It's said to be good for improving lung capacity and cognitive function, so it's enjoyable for grandpas and grandmas, children, and the whole family. Perfect for outings too. It's a new instrument, so you can brag about it once you can play it, lol. How about it?