This product is either discontinued or we cannot get that from suppliers.
Cooler Master Masterpulse Mh751 MH-751, Driver 40mm Neodymium, Frequency Response 20-20,000Hz, Impedance 26Ω, Sensitivities (@1KHz) 97dB ± 3 dB, Connector 3.5mm 4-pole jack, Steel and plastic headband, PU leather and foam cushion, PU Leather and foam cushion, 100-10,000Hz, Noise Ratio 55dB, Detachable flexible microphone.
Cooler Master Masterpulse Gaming Headset (MH-751) The MH751 Gaming Headset offers high-quality sound with high-comfort fit for your longest battle royale sessions. 40mm Neodymium drivers provide full, balanced sound.