Hello @bpakishizawa0wwl3c, welcome to Thunkable! 
In the new version (DnD UI), you can find the audio recorder blocks on the blocks tab without adding a component.
You can find more information about using sound blocks on DnD in our docs: https://docs.thunkable.com/blocks/app-features/sound
Be sure to check out How to ask Great Questions v2.0, the Community Guidelines, and our Getting Started Guide to make the best of your Thunkable Community experience!