SZBRO Bluetooth 4.0 USB Dongle Adapter Universal Plug Compatible with Windows 10, 8.1/8, 7, Vista, XP, 32/64 Bit Easily connect computer/laptop to Bluetooth enabled devices such as cellphone, printers, headsets etc. Wireless range of up to 33ft/10m. Compatible with Windows 10, 8.1/8, 7, Vista, XP, 32/64 Bit Newest Bluetooth v 4.0 class 2, low energy technology, backwards compatible with Bluetooth 3.0 2.1 2.0 and 1.0 equipment. Enhanced Data Rate (EDR) compliant for both 2 Mbps and 3 Mbps modulation modes. Guarantee: 30-Day Money Back, one year guarantee.