What is the purpose of the button located between the headphones in the charging case?
Based on the manual for the billboard KR309DB True Wireless Fin Earbuds, the button located inside the charging case between the earbuds is used…
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billboard KR309DB True Wireless Fin Earbuds User Manual — questions & answers
Read product questions and troubleshooting answers linked to billboard KR309DB True Wireless Fin Earbuds User Manual.