Open box unit, very good condition, 8.5, boxed, full warranty.
The Hifiman HE400i feature Hifiman's light-er weight design, soft Focus earpads & comfortable headband for a great fit, long wearing comfort and a minimum of heat. These are a glossy dark grey/black finish.
HE400i include a 1.5m cable, with a 6.5mm plug.
From Hifiman: Specs: Frequency Response: 20Hz - 35kHz Impedance: 35 Ohms Sensitivity: 93dB/W Weight: 370 grams
1 year warranty to original purchaser