This UbiRock Alien Portable Vibration Speaker, listed at $49.99, is now $13.99 at Tanga. Use code UBIROCKNOW to take $2 off. Shipping adds $4.99, but you can ship up to 2 speakers for that one shipping price. The best deal we could find anywhere else is $39! This speaker uses any flat, rigid surface to produce sound from your iPhone, iPod, Android device, tablet, or more. The White Rock model is also available for $18.99 plus shipping. Sales tax is not charged in most states.