A ringtone is a sound that a mobile phone makes when it receives an incoming call or message. It can be a song, a sound effect, or any other audio clip that is used to personalize a phones sound notifications. There are many websites and apps that offer free ringtone downloads, such as Zedge, Prokerala, and Free Ringtone Downloader. These websites and apps offer a wide variety of ringtones to choose from, including popular songs, sound effects, and funny clips. Some apps, like Zedge, also offer wallpapers and other personalization options for mobile phones. To download a ringtone, users can search for the desired sound clip on the website or app, and then download it to their phone. Once downloaded, the ringtone can be set as the default sound for incoming calls or messages.