For its members, Sam's Club offers the Monster Tower of Music 2 Portable Wireless Bluetooth Speaker for $69.88 with free shipping. (Non-members pay an additional $6.99.) That's $30 below our August mention and the lowest price we've seen. (It's the best deal now by $10, although most major retailers charge over $100.) Deal ends December 2.

This dust- and water-resistant speaker connects with up to seven other compatible speakers via EZ-Play and also functions as a portable battery pack. Features include a 20-watt output, microphone, USB charging port, 3.5mm auxiliary input, and rechargeable 2,200mAh Li-ion battery with up to eight hours of music per charge.