Description: 100% Brand new with high quality. USB bus power supply, no need to connect power, LED light indication. Ultra-thin and light, built-in antenna, no need for USB connection, easy to use and carry. Specification Weight: 20g Packing size: 11*13*1cm Frequency: 2.400-2.4835Ghz Transmiion rate: 3Mbit/s (EDR), faster transfer speed The working range is the farthest: 50m Security: 128 bits security mode Support EDR security mode Realize wirele transmiion of files, audio and video, wirele printing, wirele LAN, wirele Internet acce and other functions Wirele connection to devices with Bluetooth technology (eg computer/PDA/mobile/printer/wirele gamepad) Support VOIP voice calls, seamlely connect to Skype softwar Specifications: Support for all Windows systems, including Windows Vista. USB bus power supply, no need to connect power, LED light indication. Ultra-thin and light, built-in antenna, no need for USB connection, easy to use and carry. Package Included: 1*Bluetooth Adapter Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Thanks for your understandings.