New Version 3.0 Mini Usb Bluetooth Adapter for Laptop / Handfree / Mobile / Printer / Stereo This Bluetooth Version 3.0 Dongle is 8X faster than 2.0, if paired with 3.0 device. Smallest Mini Version 3.0 USB Bluetooth Dongle Adapter Windows Win 7 V3.0 Compliant with Bluetooth Version 2.1 and 2.0. Supporting Profiles: Networking, Dial-up, Fax, Lan access and Headset It is used in laptop / handfree / mobile / printer / stereo