Fullness99 via eBay offers the Mini Bluetooth 4.0 In-Ear Headset
in Black or Beige for $4.22
with free shipping
. That's tied with our mention from a week ago and the lowest total price we could find by $3, excluding other eBay vendors. It features a frequency response of 20Hz to 20kHz, and is compatible with most Bluetooth-enabled devices. Deal ends June 29.