> For the complete documentation index, see [llms.txt](https://singsing.gitbook.io/singsing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://singsing.gitbook.io/singsing/platform/deprecated/application/in-app-marketplace.md).

# In-App Marketplace

Sing and Earn In-app Marketplace is a place to trade NFT Microphones, NFT Boxes and in-game items like Gems.

* After transferring a microphone in/out of a crypto wallet or sending an item in the app, you must wait 24 hours before using/minting it.
* Newly purchased microphones from the marketplace can be used immediately.

### Trade System

User can buy and sell NFT Microphones, Microphone Boxes and Gems on the in-app Marketplace.

### Rental System

Under Development