[2PCS 𝟮𝟬𝟮𝟓 𝗡𝗲𝘄 𝗨𝗽𝗴𝗿𝗮𝗱𝗲𝘀 Z55H Battery, Compatible with Sony Headset Battery for WF-1000XM4 WF-1000XM3• Truly Wireless Earbud Headphones + Tools

I like this battery replacement kit as it includes everything you need to complete the battery replacement.It was fairly easy to do.Just watch some YouTube videos out there showing the process and it's not very difficult.The only part that can be a pain is getting the shell open.One of the shells was really stuck together and took some time to get it apart but other than that, it's a pretty straight forward process.

The tweezer that came with it was terrible. It couldn’t grip and slipped while I was remove the wire and caused damage to the wire. Also, description said the battery is 75mAh and .29Wh, but it’s actually 70mAH .27Wh.

This is a handy set for when you need to fix your earbuds. I do wish actual instructions were included instead of having to look elsewhere for them.

I received my order today and was excited to get started. However, I was disappointed to find that the glue included was damaged. The glue bottle appears to have been popped open and most of the glue had leaked out. Which made it unusable.