Overstock offers the LG Tone Pro Bluetooth Stereo Headset
in Black, model no. HBS-750, for $39.10
for shipping. That's the lowest total price we could find by $5, although they were $3 less in a different color three weeks ago. It features noise and echo cancellation, up to 15 hours of talk time (10 hours of music), Bluetooth 3.0, and microUSB charging.