Features: 1) Bluetooth V1.2/2.0 compliant, class 1 2) USB UHCI/OHCI spec 2.0 compliant 3) Bluetooth wireless access up to a radius of 100 meters and u also have the 30m for you reference. 4) Connects up to seven different enabled Bluetooth devices 5) Encryption and authentication ensures safety and secure communications ( also have without Encryption for you reference) 6) Low power consumption 7) External antenna 8) Functions: Bluetooth 2.4 to 2.4835GHz license-free ISM band frequency 9) Connects within ranges up to 100 meters (depending on environment) 10) Connects up to seven devices 11) Data rate: 723Kbps 12) RF module sensitivity: -85dBm at 0.1% Bit Error Rate (BER) 13) Security: encrypted link, authentication 14) Driver supported 15) Microsoft Windows 98SE/ME/2000/XP Packing Content: Bluetooth USB adapter CD Driver