Samsung Galaxy Buds4 Pro Wireless SM-R640n. ( Check your buds before buy : The bud is for Samsung buds4 pro. NOT for buds3 pro or buds 4 ). Samsung Galaxy Buds4 Pro bud right side only -. place both earbuds into the charging case, leave the lid open, and hold the button on the back for roughly seven seconds until the indicator light flashes blue and then turns off.
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