ESH Bluetooth 4.0 USB adapter - For Windows 8 / Windows 7 / Vista Connect your Computer/Laptop with Bluetooth Enabled Devices such as Mobile Phones, Printers, Headsets, Stereo headphones and others Latest Bluetooth specification v4.0 Class 2 with EDR low energy technology Supports windows 8, windows 7, XP, Vista, 2003, 2000 Me 64/32 bit 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. Modulation: 2.4G Direct Sequence Frequency Hopping (FHSS)