For wireless streaming:. Compatible Bluetooth devices that support the Stereo Bluetooth Profile (A2DP). For playback or recording via microSD slot:. microSD or microSDHC cards up to 32GB formatted in FAT/FAT32.Common audio formats such as MP3, WMA and WAV.(MP3 and WMA up to 320kbps). For one-touch pairing:. NFC-enabled devices. For phone calls:. Compatible Bluetooth smartphones that support the Hands-Free Profile (HFP). For direct connection to Line-in jack:. Analog audio devices with a 3.5mm output or RCA output. For Sound Blaster Control Panel:. For Windows® OS. Intel Core™2 Duo processor 2.2 GHz, AMD Athlon 64x2 Dual Core or equivalent processorMicrosoft® Windows 10, Microsoft Windows 8.1 32-bit or 64-bit, Windows 8 32-bit or 64-bit, Windows 7 32-bit or 64-bit1GB RAM600MB of free hard disk spaceAvailable USB 1.1, 2.0 or 3.0 portInternet connection (optional). Intel Core 2 Duo processor 2.8 GHzMac OS X 10.6 and above1GB RAM600MB of free hard disk spaceAvailable USB 2.0 portInternet connection (optional). Allows you to connect up to two Bluetooth devices at the same time - while playing music on one device anytime. This mode requires the music to stop playing before the next pairing/connection of another device. Great for situations when you've connected to one or two Bluetooth devices and you don't wish to share your Sound Blaster Roar with another person trying to connect to the speaker..You're in control! Allows Bluetooth devices that have been paired with the speaker to take control of the Sound Blaster Roar, simply by initiating 'connect' on these devices.