Shop4Tech offers the Macally Portable Stereo Speaker for iPod, model no. IP-A111, for $6.95. Apply coupon code "DADGRAD" to lower it to $5.91. With free shipping, that's the lowest total price we could find by $2. This speaker plugs into your iPod's 3.5mm headphone jack and operates on a single AA battery (included) for up to eight hours. Coupon ends June 12.