TechPowerUp posted a review on the Tt eSPORTS Iris Optical RGB
A quote from the article:
If you are on a tight budget, but want a high-performance gaming mouse with amazing lighting, the Tt eSPORTS Iris Optical RGB might be your top choice. At only $29.99, this mouse is a real flagship killer. The right-handed ergonomic shell is equipped with a PMW3325 optical sensor and Huano switches rated for 20 million clicks.Tt eSPORTS Iris Optical RGB Review
Tt eSPORTS has been making peripherals for a long time now, so they have quite the experience in the industry, although their gaming products are not recognized in the western market as much as in Asia. The latest few mice they released were actually quite top notch; the Ventus R and Ventus X Optical RGB, for instance, are both great, and I would gladly recommend them to anyone who finds their shape appropriate. Unfortunately, the company still tends to use some outdated sensors, but they are definitely progressing to create next to flawless products, and they do so while keeping actual price tags low. The Tt eSPORTS Iris Optical RGB is only $29.99, but according to its specifications, it can easily beat some gaming mice that cost at least twice as much. I tested it to see if the features are actually implemented properly, which you can now find out by reading through this review.