1、ADVANCED BLUETOOTH 0 ADAPTER: The Bluetooth 0+EDR adapter is small in size and easy to carry. The 24K gold plated design can effectively prevent the oxidation of the USB interface. 2、HIGH DATA TRANSFER RATE: Through enhanced data rate (EDR) support, the data transmission rate of Bluetooth technology has been greatly increased to 3Mbps. 3、PERFORMANCE: Enhance the anti interference ability and reduce the loss of transmission efficiency caused by interference in the 4GHz frequency band. The signal is more stable and disconnected less frequently. 4、TRANSMISSION RANGE 10‑20M: Our USB Bluetooth adapter adopts Class 2 radio technology, and the transmission distance can reach 10‑20m in open places, which can cover a longer distance space. 5、HIGH COMPATIBILITY: The Bluetooth 0 dongle is suitable for 32/64‑bit for Windows 10/8/7, etc. It does not need to be disassembled and will not block the surrounding USB ports. 1 x Bluetooth Adapter1 x CD Disc1 x Manual  Item Type: Bluetooth AdapterMaterial: ABSColour: BlackChip: For Realtek 8761Interface: USB 2.0Transmission Rate: 3MbpsBluetooth Version: Bluetooth Compatible with V50+EDRFrequency Band: 2,400-2,480GHzReceiving Range: Approx. 20m/65ft, Up to Approx. 20m/65ft in an Open EnvironmentOperating System: For Windows 7 8 10 2000 98 Me, etc.Does Not Support: For Windows xp for Vista for Linux for OS X