Long 28mm only

 three lines usb interfaces ： four  line usb , e-facilitator six line, 10p cable
 support power. 3. 5v 3v, reset, led,

plug and play

Product characteristic:  Bluetooth Function, Resource Sharing, Mutually general, Absolution wiring.
1.Insert and play , no need to connect the power , supporting all kinds of bluetooth phones , strong compatibility , can transmit any file easily .
2.Intuitive software operation interface , no complex settings .
3.Apply to Windows 98SE/ME/2000/XP/vistar or  Mac OS X 10.2.6 and other operation systerm , no need to drive under WindowsXP SP2 and Windows vistar , easy to take along .
4.With access to Internet via wireless dial ( bluetooth phone devices needed)
5.Bluetooth wireless LAN ,can help 8 pieces of computers build a small wireless network , also can use this function to surf through bluetooth wireless base platform , or via the computer which inserted bluetooth dongle ( the connected base platform and the computer have to be connected to Internet ) .
6.Supporting bluetooth wireless fax ( the computer need to install fax software ).
7.Supporting bluetooth wireless file transmit .
8.Supporting bluetooth wireless data synchronization .
9.Supporting bluetooth virtual serial port .
10.Supporting bluetooth wireless print .
11.Supporting bluetooth headset .
12.Supporting bluetooth user interface ( bluetooth mouse and bluetoot keyboard ) .
13.Supporting bluetooth headset with access to the music on computer or chatting through MSN/QQ/SKYPE .
14.Own audio gateway .

Technical norms:
1.CSR case ,compatiable with bluetooth v1.2, v2.0+DER, v2.1+EDR version , compatible  with USB v1.1,v2.0 .
2.Operation freguency band :from 2.4GHz to 2.483GHz , using FHSS technology ( hopping fequency and widening frequency ) .
3.The operation range can reach 30 meters (class 2;  or 50--150meters,class 1)under open space .
4.Sensitivity :< -85 dBM .class 2(< -100 dBM,class 1)
5.USB interface , data transmit rate can reach 0.725M ---3Mbps , fast- speed and stable , high security , 128 encryption , with pairing password authentication .
retail packing or 500pcs/box,or talk witch ktlink co.,LTD