Esamconn USB Bluetooth 4.0 Adapter,Micro Dongle 33ft/10m Compatible with Windows 10, 8.1, 8, 7, Raspberry Pi, Linux;for for Desktop , Laptop,computers,Stereo Headset etc. Plug and play Bluetooth USB adapter creates cable-free connections between your PCs and other Bluetooth devices such as Bluetooth enabled headsets, speakers, cell phones, keyboard or mouse at speeds of up to 3 Mbps. Newest Bluetooth class 2 Smart Ready specification with v 4.0 low energy technology. Backwards compatible with Legacy Bluetooth Equipment Bluetooth 3.0, 2.1, 2.0 and 1.0 Equipment Enhanced Data Rata (EDR) compliant for both 2 Mbps and 3 Mbps modulation modes with gold plated connector. Compatible With 32 bit and 64 bit Windows 10/8/7/Vista/XP