The SayoDevice O3C is the perfect device for playing Geometry Dash, Osu, and rhythm games. The delivery was on time, it arrived in perfect condition, it is original and exactly as shown in the image. With its 8000Hz, rapid trigger, and magnetic switches, you will significantly improve in these types of games. The only thing this product lacks is a scan rate of 8kHz or higher to match the polling rate for optimal speed. Other than that, it is a very good product; I recommend this seller and the product.

This is the best device for GD. I do have a Razer mouse, but to enable 8000Hz on it, I need to buy a dongle for 170 PLN. Here, you get customizable magnetic switches right away, and the software is convenient. Highly recommend!

Very good product. It comes in a cardboard box, well wrapped in bubble wrap. The switches are super light, and the functions they provide due to being magnetic help a lot in rhythm games. Highly recommend!

Works great, good for Geometry Dash, the screen is a cool touch. It is hot-swappable and uses Outemu hall effect switches.

The product is super good, especially for Geometry Dash or Osu! The Sayo device has a rapid trigger that is very useful for GD, and the 8000Hz is amazing. It is original and deserves more than 5 stars, and the sound of the keys when pressed is very satisfying.

The best price-quality for playing GD more competitively. Reliable seller, fast shipping, smooth and precise switches, easy-to-use software, 10/10 highly recommended.