Product ID:
Subject: T9 yobola Bluetooth Kopfhörer In Ear, Kopfhörer Kabellos Bluetooth 5.1
Content: I have bought 2 pairs of these ear phones via Amazon in July and December 2025. Now one pair has become very quiet even full volumen has been applied and from the second pair one earphone has also become quiet now. Is there an option to reset the devices or are they broken?