Get this NYNE Portable Bluetooth Speaker (model NB-200) for $49.99 at Woot. Shipping is $5. This is the lowest price we found by $30. This portable speaker streams music from your bluetooth device such as an iPhone, iPad, Android device and more, and can be used stand-alone or mounted to a bike with the included handle bar clamps. It also has a built-in mic, turning it into a speaker phone when used with a smart phone. Sales tax is not charged in most states.