As one of its daily deals, A4C offers the used LG Tone Pro HBS-780 Wireless Bluetooth Stereo Headset in Black for $18.99 with free shipping. That's $21 under the lowest price we could find for it new. (For further comparison, we last saw a refurb unit for $20 three weeks ago.) It features 16 hours of talk time and a Bluetooth range of 33 feet. Deal ends today.

Note: No warranty information is provided.