BTXETUEL SayoDevice O3C OSU Keyboard with Rapid Trigger Hall Switches, Magnetic Linear Switches, Button and Screen, Copy Paste, Shotcut, Macro Hotswap Mini

Perfect for GD. It is very durable. It is very easy to use. The color of the screen is perfect! It has a USB-C Cable, and it works very well with computers! I do not recommend buying for mobile devices, as due to the Operating system, the device runs with severe delay.

I used this for geometry dash and its very nice! The customisable features are beyond limits, its fast triggering and overall amazing. The connectivity is easy to do, just plug it in and head to the website! I recommend this to people who want to get better at geometry dash because this says actually improved my skill! 10/10! Although, the price could be better.

Good quality item great for geometry dash or osu good colour fits my setup perfectly small enough to not get in the way good price, won't break easily and it's really easy to use rapid tap/trigger really useful

Been using this since April of 2025, I've put my review at 4 stars because very early on i noticed that the knob had started to bug making it double click, its still useable to a certain extent with me having to use the button at a certain place to make it not double click, but overall everything works really well and ive also used my sayo device for gd for over 1.1 million key presses, this thing lasts along time and ill likely be buying it again due to it taking not much room because the size is very small. Next the buttons feel good quality and wont break easily. The 8K polling and the Rapid trigger is definately a game changer if you want to become a better player in gd/osu and you can definately feel the difference overall to a 1k keyboard. Lastly i recommend this product as you are able to change everything about the product screen, i have changed my menu on the drivers to showcase my own gifs/pictures meaning that it has great customisability.

My 13 year old son asked for this to play Geometry Dash on his laptop. I was sceptical but it is a really cool device with a little screen that he can customise with his own images/photos, I think he can change the colour of the lights under the keys and it also came with both black and white keys so he could choose which ones he liked best. I don't know much about it but it looks really good and he is very happy with the functionality.

The refresh rate lives up and as a geometry dash player it’s perfect it helped me beat my new hardest sakupen circles I would definitely recommend for macros as well Overall an amazing product

Thanks to this device my son can now beat grief and it is definitely worth it. I bought this for my son thinking what is this, but he loves it and is helping him beat many levels

Great gadget. Well made. Works well.