700mAh battery for Sony MDR-RF4000 headphones. | Community Mentor Help

papybricole · 2024-02-19T10:38:56.294000Z

Replacement battery for SONY headset MDR-RF 4000. Hello Small tip : Precaution: After installing the new battery, close the compartment properly ... it's what allows the contact, otherwise the battery isn't connected!

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700mAh battery for Sony MDR-RF4000 headphones. | Community Mentor Help | eBay France