A1 Gaming Headset 50mm Driver Over Ear Wired Headphones with Noise Cancelling Microphone Feature: 360° omnidirectional pickup, passive noise reduction microphone, effectively reducing noise. 50mm driver unit, increase frequency response range, improve sound level. The earpads are made of inert memory foam, very comfortable, can eliminate the interference of environmental noise, and bring fun in the game. Lightweight front beam, telescopic adjustment. Specification: Connector: USB+3.5mm, USB (Optional) Frequency response range: 20-20,000 (Hz) Impedance: 32Ω Sensitivity: 108dB Cable length: 2m/6.56ft Driver diameter: 50mm Applicable platform: for Windows,for Android, for iOS Note: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. 2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.