Orange Onions offers the SoundLogic Bluetooth iTower Speaker for iPhone and iPod, model no. BDT-15605, for $69.99. Coupon code "SHIP60FREE" yields free shipping. That's the lowest total price we could find by $21. This 24-watt system features four speakers, USB charging port, 3.5mm auxiliary jack, and more. It can wirelessly stream audio from most Bluetooth-equipped devices.