Ive felt little to no difference in smoothness between this mouse and my last, if anything its less convenient since at low battery levels, the software crashes frequently which resets the DPI and macros to default until the software is rebooted - buy this mouse if you love macros and dont mind replacing the batteries at least once a month. They go plenty loud (but loose quality at the high end). Comes with the hardware you need which is always a bonus! I bought a new product and I got an open box. Every charge lasts for a long time so power is never an issue. The sound quality is lumpy at the extremes, but the bass isnt too overbearing and theres some good detail in the mids. Go to a major phone store and look at where their charging for basic phones and you will come back running to buy this! Overall, a decent product, but use your own anchors. Good sandal for the price. It is super cute though, too bad.