Mobile phone housekeeper can't clean up voice chat records. Maybe this phone doesn't support cleaning up WeChat voice. If you want to clean up the WeChat voice, you can do so.

1. Open WeChat and click on mine.

2. Then click General.

3. Click Memory Cleanup. After clicking the memory cleanup, you can delete all friends' chats and useless chats on WeChat, and use voice, thus freeing up mobile phone space.