HB-BT513-headphone (Dongle) New Bluetooth 4.0 top advanced technology with low energy technology; Fully Compatible with older Bluetooth equipment Supports Bluetooth Headphones Bluetooth keyboards, Mouse, headsets, and more Compatible with most Operating system: Windows 98, 98 SE , ME, 2000, XP, Vista Win 7/8 8.132/64 bit USA Seller, quick shipping! 180 days warranty!