-mini bluetooth -bluetooth v2.0+edr, usb v2.0 compliant -operation range: class ii (10-20m), class i(100m) (optional) -built-in antenna -chipset: csr or broadcom -frequency band: 2.4ghz unlicensed ism band -maximun data rate:1mb -sensitivity: -89dbm 0.1%ber -led status indicator -widely supports windows 98/98se/me, windows2000, windowsxp operating system -dimension: 22x18x8mm -standard color: black