Question about Xqisit oE400 ANC

Of course with pleasure. The dimensions of the ear cup are:
Height: 5.5 cm
Width: 4 cm
Depth: 1.5 cm

The dimensions are as follows: (just measured)

Headphone shell to shell:
Height: 20 cm
Width: 14.2 cm (temple, at widest point)
Width: 10 cm (shell to shell)
Depth: 8 cm

Headphones folded:
Height: approx. 15 cm
Width: approx. 13 cm
Depth: 8 cm