On the backside of keyboard is the battery compartment. It is a little difficult to "slide" open. Normally there is a groove or raised area that you press firmly on with a finger or thumb to gently slide away cover. With my keyboard I had to slip my nail into the space between battery cover to pry open and then slide cover out. On the other hand, you won't have a loose battery cover. Also, there is no ON/OFF switch on this keyboard.
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