Barely used. A couple of months old. Still with original box and 6.3mm adapter.

I bought these to use in a gaming setup but had unrelated sound-card issues. As a result these have been used for about four hours in total.

Product Description

Audio-Technica’s ATH-A900x closed-back dynamic headphones deliver audiophile-quality acoustic performance with superior, deep bass and vocal projection unmatched in its class. The headphones feature large-aperture 53 mm drivers for high-fidelity playback. Equipped with Audio-Technica’s innovative self-adjusting wing support mechanism, the headphones offer long hours of remarkably comfortable listening.

- Audiophile -quality headphones with aluminium housing

- Closed-back Double Air Damping System for deep bass reproduction

- Large aperture 53 mm drivers for high-fidelity playback

- Superior, deep bass and vocal projection unmatched in its class

- CCAW voice coils and OFC (oxygen-free copper) cloth-wrapped cable

- 3D Wing Support Housing offers a vibration-proof mechanism that provides comfortable support for a better listening experience

- Extremely comfortable ear-fitting pads

Other Characteristics: 

Acoustic system: closed

Audio adapters included: 6.3 mm

Cable length: 3 m

Cable type: OFC

Colour of product: Black

Connectivity technology: Wired

Connector contacts plating: Gold

Device interface: 3.5 mm (1/8")

Driver type: dynamic

Ear coupling: Circumaural

Headphone frequency: 5 - 40000 Hz

Headphone sensitivity: 101 dB

Impedance: 40 Ω

Maximum input power: 2000 mW

Weight: 350 g

Paypal only please.

I will either post it out to you or collection can be arranged from the SG12 area.