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Description:1) standard blurtooth spec. V1.2 2) USB v1.2 3) bus interface USB type a connector 4) frequency band: Ism 2.4ghz to 2.480ghz 5) channel bandwidth:1mhz 6) piconet support seven slave 7) link modes: Acl and sco 8) data transfer rate acl:723kbps 9) sco:64kbps 10) rf output power:0dbm (1mw) class 2 11) sensitivity: Better than -80dbm 12) transmission range:100m (class 2) 13) os supports: Windows 98se/2000/me/XP and later 14) security parsing, encryption, authentication 15) input power: DC 5v by USB bus-power 16) LED indicator power