These are Oppo’s Dhansu earbuds, will run for 25 hours on a single charge, the price is just this

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Users will get up to 6 hours of battery in a single charge in these earbuds. At the same time, with the case, users will be able to run it for a total of 25 hours. The battery of each bud is 27mAh. At the same time, there is a 300mAh battery in the case.