GXG-1987 BTA-402 USB Bluetooth 4.0 Micro Adapter Dongle Mini Bluetooth 4.0 Adapter Dongle With CSR8510 Controller and CSR Harmony for Windows XP Vista 2003 2008 7 and 8 32 or 64 Bit - Black Premium CSR Harmony Application included allow Microsoft Office and other Applications Access Bluetooth Connection Directly Fully Content with Bluetooth 4.0 Specification with 24-bit CRC Verify & Adaptive Frequency Hopping(AFH) ; Enabled High Sensitivity CSR8510 A10 Controller Advanced Audio Processing Enabled allow a Lossless Audio and DATA Delivery up to 3Mbps and 100M (Peer to Peer) AVRCP & A2DP Enabled allow to Play Music on the Speaker or Headset of Computer from Cell Phone, tablet PC and any Bluetooth Enabled Devices Micro Bluetooth Adapter allow to Plug and Forget,Compatible with Windows XP,2003,Vista,7,2008 and Windows 8 (Both 32Bit and 64Bit) and Mac