Keep your favorite superhero close with these rechargable speakers. They pack the same punch as your favorite hero with super-loud stereo sound quality. Their compact size makes them portable, and a rechargable lithium-ion battery makes them perfect for long-time listening. Plus, the Keychain Speaker Ball System expands, allowing for a better sound quality. The Keychain Speaker Ball System is small enough to fit in the palm of your hand, and with their 3.5mm jack they are the perfect accessory for any iPod, iPhone, or MP3 music player device! Choose from Captain America, Incredible Hulk, Iron Man, Silver Surfer, Thor, or Wolverine Speaker Ball Keychains.
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