RegHardware: "Sony Ericsson has a lot riding on these tiny wireless headphones. Barely bigger than wired earbuds, they're a flagship product for a company known for its quality peripherals, and SE wants these boys to cement its reputation.
As Bluetooth stereo 'phones really are very small. The buds fit into the ear canal and stick about 1.5cm out of it, so each headphone is about twice the length of a regular bud earphone and slightly bulkier towards the back. In use, you wouldn't get a motorcycle helmet on over them, but you're not going to look like Uhura, either."