I've been trying out the mouse and number pad at my workplace for a few days. I have to say that I like the mouse, it works smoothly and is also light. The number pad was also a big plus as I work with numbers every day. It's also lightweight and the keyboard is silent when pressing numbers. The mouse and numeric keypad are battery operated. So, I think the battery life depends on the battery used. All in all these are two great products!
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