• Adds Bluetooth support to Windows 10, 8.1, 8, 7, or Linux PCs that don't already have it. Adds Bluetooth 4.0 (Bluetooth Low Energy) support to Windows 8 and higher
• Supports Bluetooth speakers, headphones, headsets, keyboards, mice, and more. Extremely compact USB adapter. Safe to leave in for laptop travel. Energy efficient
• Automatic install through Windows Update in Windows 10 with default Bluetooth stack. Includes Broadcom Bluetooth stack for Windows 8.1, 8 and 7 (available separately for 10). Works with Raspbian and Ubuntu on the Raspberry Pi
• Does NOT add Bluetooth Low Energy (Bluetooth 4.0) capability to Windows 7 and earlier. Does NOT work in car stereo systems or TVs. Does NOT work with Mac. NOT recommended for employer-provided computers

Techkey adapter plug and play for transfer file,audio or voice wirelessly for your desktop and laptop PC,allow cell phone,tablet connect to speaker,headset and playing music of transfer voice,update your wired speaker or headset to easily.Compatible with 32/64 bit windows 10/8/7/vista / 2000 / xp.