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Use a can of air and clean it
Sorry, there was a problem. Please try again later.Hi Nettyroo, we're sorry to read the keys on your MK550 are becoming hard to use. You do have a 3-year limited warranty that can be used to have a replacement sent out to you. You can do that here: https://support.logi.com/hc/en-us/articles/360025080753-Warranty-Logitech-Wireless-Wave-Combo-MK550. Hope that helps! -N from Logitech
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