Transmission rate: Bluetooth adapter supports maximum transfer rate up to 3Mbps and transmission distance up to 33ft/10M in open space. Designed for Windows. Plug and play for Windows 8/10 system. Driver only needed when your windows 7 and lower system need to connect Audio device, but connect Mouse, keyboard and cell phone no need to install driver High compatibility: support 32bit/64bit Win 10/8/7/ Vista and XP, enables PC or laptop to connect Bluetooth-enabled devices, like smartphones, Mouse, speakers, headsets. Not work with Mac OS, car stereo systems or TVs