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Forever!
Sorry, there was a problem. Please try again later.These have a long battery life. I keep these in my car just in case I lose or forget my primary headphones. I have only charged these once since I bought them and they have kept a charge this whole time. The case charges the earbuds. So, If the case has as full charge, then everytime you put the buds back in the case they get recharged.
Sorry, there was a problem. Please try again later.It depends on how charged the earbuds are. You are more then welcome to contact Customer Service department for any more questions.
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