The keyboard/mouse is fully functional. The problem is that at $20, the quality gap between this and Logitech's $30 entry-level model is huge. My biggest complaint is how uncomfortable this mouse is to use. It doesn't fit my hand properly and feels too flat. The keys don't respond clearly to this, but simply feel "cheap". Even pre-built wired keyboards feel more comfortable. Another thing is that there is no on/off switch. This makes it harder to carry the laptop in my bag, so now I have to remove the batteries to avoid accidental clicks while the mouse is moving around in the bag. For example, the MK320 combo costs $27.99 for both mouse feel and keyboard feel and overall ease of use. My advice: just spend 5-10 bucks more for the Logitech brand. Now I have to buy a second keyboard and I don't have $20.
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