Yoto says: This is a replacement battery and NFC reader for the Yoto Mini (2021-2023 Edition).
The replacement Yoto Mini battery comes with all tools and parts you will need to replace the battery. With a new battery, your player will last longer and you’ll benefit from increased listening time. The kit is super easy to use and comes with simple instructions in both written and video format via the QR code found on the inside of the lid.