BuyDig offers the Samsung DA-E550 Bluetooth Audio Dock, for $139. Coupon code “SOUND50” cuts it to $89. (This price will show up on the final page of checkout.) With free shipping, that’s $40 under our mention from two weeks ago and the lowest total price we could find by $41. It features Bluetooth 3.0 connectivity and can serve as a dock for iPhones, iPods, the Samsung Galaxy SII, and Samsung Galaxy Note.