As one of its daily deals, A4C offers the refurbished Böhm SoundBlock Wireless Bluetooth Speaker in Black for $17.95 with free shipping. That's $22 less than the lowest price we could find for a new one and the best price we've seen. It features two 40mm drivers, frequency response of 180Hz to 20kHz, and wireless range of 33 feet. Deal ends today.

A 90-day A4C warranty applies.