The keyboard has run on the same set of batteries from the time it was purchased in early March until now, mid-November. Despite the fact that I rarely switched it off; in fact, it is generally on the table in front of the laptop at all times. Only when going somewhere I won't need it do I disable it. The benefits: Very fast device switching amongst three connected devices; whisper-quiet typing experience. Input for playing media through keyboard. Compatible with iOS, OS X, and Windows + The ease with which I was able to switch devices was a nice surprise. Some drawbacks: When printing quickly, it has frozen and slowed down a few times. If the batteries have been laying there for a while. In the previous few months, I can't remember turning it off even once. The problem with the audio is temporary. It would be convenient if the F1-F12 keys could replace the functions in the top row of buttons. You become bored of holding FN and reaching for the desired F-key when working in office programs.
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