The Corsair HS55 Wireless Core Gaming Headset combines wireless 2.4 GHz audio, Bluetooth, and Dolby Audio 7.1 surround sound via a 2.4 GHz wireless connection to PC and Mac. It features a lightweight design reinforced with aluminum for durability and all-day comfort. The HS55 Wireless is light yet sturdy for hours of comfortable gaming. It has a battery life of up to 24 hours, and just 15 minutes of charging provides 6 hours of playtime. Weighing only 266 g, it includes adjustable headbands and memory foam ear cushions. You can easily switch between 2.4 GHz wireless and Bluetooth with the press of a button. Note: Dolby Audio is only available with the Corsair iCUE software on PC and Mac.