You are looking at an mini and speedy transfers USB bluetooth dongle.  Blutooth USB Dongle is a quick and inexpensive solution as a bluetooth plug-on modules to computers. It enable computers to communicate with any Blutooth peripherals(such as
computers,PDAS,mobile phones,printers,mouse,etc)wirelessly.

Specification:

• Product Type: USB Bluetooth Dongle.
• Bluetooth Version: V1.2 EDR;
• Interface Type: SPEC V1.1;
• Output Classs:class 2;
• Wireless connect to Bluetooth devices such as mobile phones, PDAs, or PCs for dial-up networking, fax and data transfer.
• Operation range:20m.
• Frequency Band: 2.4GHz band(2400MHz-2483.5MHz)
• Regulatory Mode : FHSS 
• Current :20-60mA
• System Required:IBM PC/AT Compatible devices with 300MHXz Processors or above ,128MB memory or above and USB interface
• Software Support:Windows 98se/me/2000/XP ; Mac OS Xv10.2