New ARIIC Bluetooth Mini USB Bluetooth CSR4.0 Wireless Adapter Dongle 20m for PC Bluetooth specification V4.0 Compliant. Supporting profiles:networking,dial-up,fax,lan access,and headset. Operation system:windows98,98se,me,2000,xp,vista,windows7 Interface:USB compliance. Symbol rate:3Mbps. Receiving/Sending range:20m-50m Bluetooth low energy Radio USB Dongle Dual-mode Bluetooth transfer