Gaming Headphones - wireless, with microphone, headset, around the ears, closed construction, 3,5mm Jack, radio frequency connection, for PC, 7.1 surround sound, with volume control, frequency range: 20 Hz-40000 Hz, sensitivity: 117 dB/mW, impedance: 32 Ohm, converter: 40mm, removable cord length of 1,5m, battery life of up to 55 hr(s)