You need to check whether the earphone volume is too low, or whether the audio source is playing normally, whether the Bluetooth device is connected correctly, and so on. If it is a new Bluetooth headset, it can be returned in this case, and the relevant stores will have after-sales service.
As a high-end Bluetooth headset, rambler Bluetooth headset has been co-branded with Joker Xue, and many consumers have bought this headset, which has won a lot of praise.