N++ is a Chrome add-on developed by 92thunder that adds keyboard shortcuts to the web version of NHK Radio. With this add-on, users can enhance their listening experience by easily controlling playback and adjusting volume without the need to manually click on the player.

To use the keyboard shortcuts, users need to click on the playback area and ensure that it has focus. The add-on provides the following keyboard shortcuts:

• Spacebar: Play/Pause
• Left/Right Arrow: Rewind 10 seconds/Fast-forward 10 seconds
• Up/Down Arrow: Increase/Decrease volume by 10%

By incorporating these keyboard shortcuts, N++ offers a convenient way for users to navigate and control NHK Radio's web version. This add-on is free to use and falls under the category of Browsers, specifically the Add-ons & Tools subcategory.