The set is included opened-back headphones,
hybrid pads and cable.
 
Such  wood is available for order:
palisander wood 
 
Technical specifications:
- Planar magnetic drivers for better dynamics and frequency response
- Style: over-ear, opened-back
- Double-sided magnetic structure
- Magnetic structure: proprietary matrix magnet array
- Magnet type: Neodymium N52
- Transducer size: 100 mm
- Maximum power handling: 5W RMS
- Frequency response: 10Hz – 20kHz
- THD: < 0.1% 100dB
- Impedance: 18 ohms
- Sensitivity: 97 dB/1mw (at Drum Reference Point) 
 
Sash Matrix needs amplifier with about 0,8-1 Watt on channel. 
 
Available connector to device: 2,5mm balanced, 3,5mm; 4,4mm balanced, 6,35 mm; 4 pin xlr balanced, without cable . 
Cable length can be from 0,5 m to 1,5 m, without cable . 
 
Sash Matrix can be closed or semi-opened, so you may additionally order closed covers and/or semi-opened covers for this model (Optionally covers).
 
Sash Tres can be used with velour pads, hybrid pads, perforated pads(Optionally pads).
 
There are opened-back headphones with grilles, cable, hybrid pads in the set.