Best Buy Canada has this Ultimate Ears Mobile Boombox Wireless Speaker on sale for only $59.99 (save $70).
At Best Buy you can choose between three colours: black, blue, or red. The black is currently sold out online, the red currently has four units left, and the blue is still in stock but there are limited quantities available.
This system is wicked in that it lets you control your music from up to 50 feet away via your smartphone or tablet as it is a bluetooth speaker. It has a built-in rechargeable battery that can last up to 10 hours so you do not have to worry about buying lots of batteries. Because the speaker costs over $20, it will ship to you for free.
(Expiry: 9th January 2014)