Porodo PDx414 Gaming Headphone 3 Dimensional layered sound delivers surround sound so you can hear every footstep, shot, and the bullet that passes by. Omni-directional noise-cancellation mic ensures clear and crisp communication. Specification: – Speaker size: 50mm – Impedance 20Ω – Cable Length: 2.1m – Rated Power: 25mW – Max Input Power: 40mW – Plugs: 3.5mm”2 & USB – Mic Sensitivity: 117dB Features : – Noise-Cancelling – USB Plug – 3.5mm – 3D Dimensional