SayoDevice O3C Black Keyboard

Amazing 8000 hz polling rate the reactivity is amazing especially for games like geometry dash/Osu it functions very well and has a volume knob very useful if you have a smaller keyboard without normal sound function keys, its easy to connect and was pretty comparable off the start.

I almost gave this product only 4 stars because in the world of Amazon, this item ships SLOW. Just be prepared for that. As far as actual quality - worth the wait. Exactly what my son was looking for. He now uses it daily. Functions exactly as it should and has enhanced his game play.

Little hard to work but overall great looks and feels amazing and works well

The product feels high quality. The switches are really good and responsive. If you buy this product make sure you callibrate it with the inbuilt callibration tools.

I used the Sayo device for Geometry Dash, and it works extremely well! I got the settings that worked well for me, but at first, I had to recalibrate it since the key automatically spammed the first button, which was really easy to do. It comes with black keys on it and a set of white keys if you want to change it! It was small and easy to plug in, and I love how it has a screen, and you can put custom videos or whatever on it! I bought the black Sayo device and it went well with my setup!

Got this for my kiddo who plays geometry dash and honestly I'm geeking out on this way harder than he even is. It's so incredible all the different functions it has I haven't even figured it all out yet but this was definitely a solid purchase. It looks and feels really nice too. The size is perfect and there is zero lag. As far as I'm aware it doesn't connect with Bluetooth, as it shouldn't sense Bluetooth is not the kind of thing you want to use if you want to skirt lag. Definitely make sure you have a proper cable though, I do not believe for a half a second that the cable this thing comes with is proper. Make sure you get at least a 5 gig data cable USB-C

Fast and receptive; perfect for playing geometry dash; slightly annoying click sound

It’s crazy how this little device makes you improve a lot in (my case) geometry dash. And it’s pretty cool small tech, too, with the little screen. The 8000hz and rapid trigger functionality makes this absolutely worth it for timings. I heavily recommend if you’re onto GD. Didn’t believe the hype, now I do.