ASUS ROG Centurion Premium true 7.1 surround sound

Description

(There is no box or stand.) I purchased these for my son, who tested them and found them to be functional; he ultimately chose the Audeze LCD-GX Gaming Headset.
Headphones are new All the cables are new, the sound card is Used. I  PIECED this together.
Also an extra set of right ear-cups
memory foam cloth
Premium true 7.1 surround sound
Soft and breathable memory foam on-ear pads
10 discrete drivers with noise-canceling
Modern and sleek design
Specification
Connector: HDMI connector, USB for PCs (through the audio station)
Speaker driver dimension: Front: 40mm, Sub-woofer: 40mm, Center: 30mm, Rear: 20mm, Side: 20mm
Driver material: Neodymium magnet
Impedance: 32 ohms
Frequency response: 20Hz–20kHz
Ear-cup: Two pairs of ear-cup, Protein leather and memory foam cloth
Weight: 50g (without cable)
Size: 221.5*229*111mm
Cable: Braided cable: 1.5M + 1.5M = 3M
Lighting effect: Static/Breathing/Off
Microphone Type: Retractable Digital Microphone
Pick-up pattern: Uni-directional
Frequency response: 100Hz–12kHz
Sensitivity: -26 ± 3dB