From the photo I could not decide which one is better to choose blue or gray - the colors simply scared away. In life, blue looks very nice. Lies comfortably in the hand. The wheel spins with pleasant steps - they are felt with a finger, but at the same time they do not create tangible resistance. Compared to the Logitech M235 I've had for a couple of years, it looks better, feels better in the hand, and runs smoother. There are no problems connecting to Lenovo X1 Gen6 with Ubuntu 20.04 OS - a few seconds and connected. It does not conflict with other devices, while using bluetooth headphones with the same laptop, I did not find any problems, and the sound without pauses and the cursor without bouncing.
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