2 Pack CP1254 Z55 Battery,Compatible with Sony Headset Battery for WF-1000XM3 Wf1000X XM3 SP600 700 900 Battery Jabra Rox BandO H5 E6 Galaxy Buds Bluetooth Headset BatteryTOOLS

**** The battery replacement kit for the Sony WF1000XM4 earbuds has garnered a mix of enthusiasm and disappointment from users. Many customers have praised the kit for its affordability and effectiveness in revitalizing their earbuds, indicating that the DIY repair process is relatively simple, despite the absence of detailed instructions. Online tutorials provide ample support, making it accessible for even the less tech-savvy individuals. Users report that the kit includes essential tools, such as two batteries and a screwdriver, which facilitate the replacement process. However, the overall satisfaction is marred by concerns about the longevity of the replacement batteries. Several users have noticed a rapid decline in battery performance, with reports of earbuds losing charge significantly within just a few months of use. Some have expressed regret over their purchase, recommending original batteries instead due to the poor quality of the replacements provided in this kit. Additionally, there are complaints regarding the quality of the tools included, particularly the screwdrivers, which have been described as subpar and damaging to the earbuds. In conclusion, while the kit initially seems to offer a viable solution for extending the life of the WF1000XM4 earbuds at a reasonable price, long-term performance issues and tool quality detract from its overall appeal. **