Premium Sound 40mm speakers for crisp highs and Thounder lows. GranVela computer headset will be a Nice Gift for your children, friends, or any other younger gamers. Lightweight Design A light, slim and balanced assembly gives you a natural and stable fit for maximum gaming comfort. Headphones On, World Off These gaming headphones is engineered with advanced noise cancellation, so you can focus on what matters – your Games, Music, Movies and Video. Specification: Driver diameter: 40mm Impedance: 32ohm Cable length: 2.5m Frequency range: 20-20KHz Sensitivity: 105dB +/- 3dB