I just got a pair of those from Kickstarter. The jury is still out - they are Bluetooth, and so far the battery life on the Kokoon NightBuds rivals that of the Wyze Buds. I had them on for about 7 hours constant with the sleep sounds (RainRain app) and when I got up they still had 47% battery power left.
With that being said, they are kind of odd. There’s a learning curve as to how to wear them, the Bluetooth and inner workings are in a little padded compartment that sits in the back of your head, and it’s not uncomfortable, it’s just a little weird to get used to.
The wires that attach the earbuds to the compartment are squiggly and stretchy, but they’re not in the way at all because they kind of mold around your head. All of the control buttons are on the top of the compartment, so there’s no tapping, but you have to reach around and find the right button to adjust the volume or start & stop your sounds.
The earbuds themselves are not terribly comfortable, at least not for me. Again, they’re made of hard plastic, and although they give you several size options for little silicone sleeves that fit over the buds, I have yet to find the size that doesn’t make my ears hurt like the dickens when I wake up in the morning. Too small, they fall out. I’m working with the S-M size right now, and they’re not sealing on my ear right so the snorting wildebeest sounds are getting in and waking me up.
My BIGGEST complaint with them is a lack of volume. I have my phone cranked up to 100% and it still is faint and hard to hear. I’ve tried audiobooks and Spotify, YouTube, Amazon Music, and every single thing is at a really faint volume.
Their app is also superfluous and doesn’t really give you decent sleep quality insights, but there have been several updates based on feedback, so I’m sure that’s still in development as they learn more about what kind of app integration people want.