Auriculares laterales izquierdo de repuesto Sony WF-1000XM4 WF1000XM4 negro - FIRMWARE 2.3.1

(If you need firmware 2.1.0or 2.0.1 let us know and we will send you one otherwise we will send the firmware you need. ), and the headset is initialized. This operation resets the headset to the factory settings and deletes all pairing information.

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