Item description: 100% Brand new and high quality. Bluetooth BT 4.0 LE compliant (High Speed) Compliant with Bluetooth Version 3.0 + HS, 2.1 + EDR and 2.0 Supporting Profiles: networking, dial-up, fax, LAN access and headset Bluetooth Class 2, Compliant with Bluetooth Class I standard Effective Range: 20m Interface: USB compliance Simple pairing and anti-jamming design Support Wake-on-WLAN and Wake-on-Bluetooth HCI transport updates for USB and SDIO Simple pairing and anti-jamming design Rate: 3Mbps Specifications: Version: CSR4.0 Operation system: Windows XP, Vista, Windows 7 32/64 Win 8 Interface: USB compliance Sensitivity: -86dBm @0.1 % Receiving/Sending range: 20m Certifications: FCC, CE Size: 26×15×7mm