shenzhen k-lead industrial co., ltd, established in 1998, is an incorporation of designing, producing and selling usb dongle, usb. with more than 8 years experience , we succeed in developing high-tech products.at present, we now have little fat bluetooth usb dongle£»aerial bluetooth usb dongle£¬ ess-388 bluetooth usb dongle£¬ ear-held mono bluetooth earphone£¬ear-held mono bluetooth earphone£¬collar stereo bluetooth headset . email:kleadsales@gmail.com; http://szk-lead.com/usb