Groupon offers the JBL On Air Wireless Speaker for iPhone or iPod touch
, model no. JBLONAIRWBLKAM, for $169 plus $5 for shipping. That's the lowest total price we could find by $20. These speakers support Apple's AirPlay and Remote app for wireless streaming of your iTunes library on your computer. It features a color LCD screen, iPod dock, digital FM radio, clock with dual alarms, USB input, and more. Deal ends March 12.
Update: As a reader found, Costco offers this item to its members for $149.99 with free shipping. (A $7.50 non-member fee applies.)