Multiform Bluetooth CSR 4.0 Dongle 2.0 USB Wireless Adapter For PC Laptop Windows XP/Vista 2.0 USB Bluetooth adapter is with Licensed IVT BlueSoleil CD driver compatible with 32 bit and 64 bit Windows XP/VISTA Bluetooth 4.0 USB Micro Adapter Dongle Achieved with CSR8510 Class 2 Networking Advanced Audio Processing Exclusive for Bluetooth 4.0 Voice Quality Enhancing allow to Process AAC Audio Losslessly as well as Process MP3,WAV,APE or FLAC. Ultra low power consumption to extend the battery life of your laptop or portable device Backward compatibility with Bluetooth versions 2.0/2.1/3.0 devices - handsets, etc. Dial-up Fax LAN Access speaker keyboard and Headset