Summary: I have owned the M6800(wired) twice and i loved it for it's simplicity and affordability. i decided to upgrade to a wireless. Bad choice. I wish i would have just re-orded a M6800 or waited for a Logitec sale.
Cons: This mouse was WAY smaller then i thought. I wish it would have been labeled "mini" or something. This mouse disconnects/freezes continuously. I even tried downloading the drivers from Gigabytes site.
Summary: We met with a little success by turning it off , then closing the Chromebook lid. Then when opening the Chromebook, then turning mouse back on. It would still drop in middle of reasonable use. Am sad to see Gigabyte not work . We had several of an earlier wireless model and loved them.
Pros: comes in pretty plastic case.
Cons: - would not stay paired to our Chromebook - seemed to sleep and not wake up.
Summary: I should have known something was up when I first bought this mouse and it look used right out of the packaging. I returned it and got another - same issue, mouse had noticeable scrapes on the underside and visible wear, however, was "new" in packaging so I kept it due to compact size.
Pros: Compact, accurate laser sensor.
Cons: Support is terrible from this Taiwan-based company. Customer Service rep was rude. No way to purchase USB dongle separately. If it breaks you now have a useless mouse.
Summary: I bought this mouse in February 2014. I had intermittent issues and replaced my Bluetooth dongle which helped. I was replacing batteries every 3 weeks until in August this mouse died. I returned the dead mouse to the factory which replaced it in 7 days. It's been 1 month now and the mouse is dead.