Sony True Wireless Earbuds with Charging Case, Black, WF1000XM4BLACK

Thank you for sharing your honest and detailed feedback. We are very sorry to hear that you are experiencing this severe battery drain issue with your WF-1000XM4 earbuds, especially since you are otherwise pleased with the sound quality and fit. It is deeply concerning to hear that your right earbud is now essentially unusable, and we apologize for the frustration this has caused, particularly with the trouble you had finding a direct way to contact us. We understand that a significant battery difference or sudden failure like the 35% to 0% drop is a major concern. We want to make this right and ensure you get the reliable performance you expect from Sony. For this specific issue, we have support options beyond just phone, including online Chat support, which will be better equipped to handle a service or replacement inquiry. Since you've taken the time to leave this review, we recommend you reach out directly using the link below. https://us.esupport.sony.com/support/s/support-contact?language=en_US&category=headphones Thank you again for bringing this to our attention. Your feedback is valuable, and we hope to have the opportunity to resolve this for you quickly. Best regards, Gus, Sony North America Customer Support

Hi SemiSatisfied, We regret to hear about the battery issue with your Sony wireless in-ear headphones. This is definitely not the customer experience we want you to have. To isolate and hopefully resolve this issue, please make sure to update the firmware of your headphones: https://www.sony.com/electronics/support/wireless-headphones-bluetooth-headphones/wf-1000xm4/manuals. The updates improve the general performance of the unit and resolves any possible software-related issues. When charging, make sure that the headset is set into the charging case securely. If the earbud tips are not properly attached to the headset, the headset may not charge with the supplied charging case. Check that the earbud tips are attached properly when you store the headset in the charging case. If still the same, reset and initialize them to factory settings to further isolate the issue: - https://helpguide.sony.net/mdr/wf1000xm4/v1/en/contents/TP1000428696.html - https://helpguide.sony.net/mdr/wf1000xm4/v1/en/contents/TP1000428697.html Should you need further assistance, you can email us at socialsupport@am.sony.com with the following details: Name: Sony website Username: Model Number: Issue: Telephone Number: Sincerely, Vincent