Ending today, Groupon offers the Jawbone Mini Jambox Wireless Bluetooth Portable Speaker in Graphite for $59.99. Coupon code "EXTRA15" cuts it to $50.99. With free shipping, that's the lowest total price we could find by $19, although we saw it for $4 less two weeks ago. Features include an aluminum body, built-in speakerphone, up to 10 hours of playback, and Bluetooth 4.0.