HyperX Cloud Mix Bluetooth Wireless Technology + Wired Gaming Headset Driver: Neodymium magnets, 40mm, custom dynamic Form Factor: closed back, circumaural (over the ear) Response to Frequency: 10 Hz to 40,000 Hz Sensitivity at 1kHz: 100dBSPL/mW T.H.D: less than 2% Frame Material: Aluminum Memory foam and high-quality leatherette ear cushions Click Here for Additional Information. HyperX Cloud Mix Bluetooth Wireless Technology + Wired Gaming Headset It has a built-in microphone and a detachable boom mic, making it a more portable Bluetooth® headset. Cloud MIX has easy-to-use onboard controls for wireless mode and in-line audio controls for PCs and consoles. It works wirelessly with media players that support Bluetooth® and wiredly with platforms that have 3.5mm ports. FREEDOM OF WIRELESS BLUETOOTH® Enjoy up to 20 hours of wireless freedom after disconnecting the cable.