These new high-end (read; expensive) Elecom XCALGO EHP-OH900 series Headphones have a unique folding mechanism meaning you can tuck them up into a tiny space and easily unravel them when needed. Pretty neat for overhead headphones which, when unfolded to their full glory, look like they could be a comfy home for your ears on a cold winter night.
Available in black, white, pink and a skull design, the Elecom XCALGO Headphones come with the following specifications:
36mm Driver unit: φ36mm
32Ω Impedance: 32Ω
101dB/1mW Sound pressure sensitivity: 101dB/1mW
50mW Maximum permissible input: 50mW
20Hz～20kHz Playing frequency band: 20Hz ~ 20kHz
Cord length: about 0.8m (one piece)
Plug shape: 3.5mm Gold
190mm Dimensions: approx width of about 175 × depth 68 × height of about 190mm
Look out for them on Japanese import come October for around ¥ 6,000 (with the economy the way it is, you can do the currency conversion when you know you have the chedder to buy a pair of Elecom XCALGO EHP-OH900 series Headphones).