Features:1. High speed2. Simple pairing3. Good anti-jamming4. Dual-mode bluetooth transfer5. Low Energy6. Supporting multi languages7. Easily connect your computer with smartphone， tablet and other bluetooth deviceSpecifications:1. Version: CSR4.02. Operation system: Windows 98， 2000， XP， Vista， Windows7， etc3. Compatible with: Bluetooth V1.2/2.0/2.1/3.04. Interface: Standard USB5. Rate: 3Mbps6. Frequency: 24MHz7. Receiving/Sending range: 20m8. Product size: 26 x 15 x 7mm app.Package Included:1 x Mini USB Bluetooth 4.0 Adapter