Unofficially the world's loudest cup, LoudCup is here to turn up the volume on your fandom. Built-in horn turns your cheers into a blast of sound, elevating every moment. Viral Sensation: TikTok & YouTube-approved way to make a loud statement. Great for sporting events, parties, concerts, etc. FEATURES Double-walled insulated design Fits standard cup holder 600ml / 20oz capacity Solid polypropylene material Snap fit lid Be as loud as you want to be!