The Digital Pavilion via eBay offers the refurbished ION Block Rocker Portable Bluetooth Speaker System in Black, model no. IPA56, for $89.99 with free shipping. That's $30 under our fall mention of a new one and $54 less than the lowest total price we could find for a new unit today. It's compatible with most Bluetooth-enabled devices and features a 75-hour rechargeable battery, microphone, digital AM/FM radio, telescoping handle, and integrated wheels.
Note: No warranty information is provided.