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Not sure it came with it but it's on all the time and still going strong after 4-5- months 10 hours a day
Sorry, there was a problem. Please try again later.The keyboard uses two AAA batteries. I got the keyboard right at the beginning of September: it's now the very end of November and I haven't needed to replace the batteries yet. So, for me, the battery life has been just fine.
Sorry, there was a problem. Please try again later.Takes AAA
Sorry, there was a problem. Please try again later.Have had had 2 QB467AA keyboards over past 7-8 years. Batteries last a long time. I'm a fulltime heavy user and they last easily 4-7 months at least. I have to replace mouse batteries more frequently.
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