Very few stereo Bluetooth headphones offer an earbud-style design, and even then, there are often larger earpieces attached. Sony Ericsson addresses this issue with its HBH-IS800 Wireless Stereo Headphones, which are the tiniest wireless earphones we've ever come across. With an MSRP of $200, this set is far from the cheapest, but if you're after a cord-free pair in the most compact package, the HBH-IS800 is the best option.
Rarely are we in awe of a product's design, but the Sony Ericsson HBH-IS800 headphones are nothing short of incredible. The company managed to cram all the technology required of a stereo Bluetooth headset--a receiver, a transmitter, and a battery--into two tiny earpieces, each measuring just an inch long and less than half an inch in diameter.
However, there's no guarantee you'll get a good fit. Although they are small for wireless headphones, the HBH-IS800s are actually on the large side compared with typical earbuds, so some users may not be able to achieve a secure and comfortable fit.
Overall sound quality is very good, though not as great as you might expect of a wired set in this price range. Still, you're mostly paying for the ultratiny form factor, and Sony Ericsson delivers here without sacrificing sound quality, which is on par with or better than most other stereo Bluetooth headphones.