Win XP Sound Button is an Android application developed by RasenStudio and falls under the lifestyle category. The app is free to use and is aimed at bringing back the nostalgia of the good old days of Windows XP.

Upon opening the application, users are greeted with a simple and easy-to-use interface. The app consists of a single button that, when pressed, plays the classic Windows XP startup sound. The sound quality is clear and crisp, and the button is responsive.

Overall, Win XP Sound Button is a fun and entertaining application for those who want to relive the nostalgic memories of the Windows XP era. It's a great app to have on your phone for a quick trip down memory lane.