The Rumblebuds earbuds from Atomic9 have two speaker drivers for each ear, so you’ll get true, deep, rumbling bass. Atomic9 says these earbuds are “designed to give gamers the complete 3D effect using the latest technology for that extra bass you can actually feel.” Rumblebuds reproduce 20-20,000Hz with 0.8G of vibration at 100Hz. This vibration doesn’t require external batteries. They’ll also give that extra rumble to your music as well as games. The 3.5mm cable means the earbuds will work with most mp3, cd, and DVD players, Nintendo DS, XL, PSP, iPod, iPhone, and other smartphones. Rumblebuds are available in white or black for $49.99, exclusively at Best Buy.