100% Brand new and high quality Quantity: 1pcs Bluetooth V2.0 + EDR USB2.0 specification, backward compatible with USB1.1/1.2 USB bus powered, no power supply is built-in LED work light indication Slim extremely light, built-in antenna, no USB connection, use, easy to carry Frequency :2.400-2 .4835 Ghz Usage Frequency: frequency hopping Spread spectrum (FHSS) Transfer Rate: 3Mbit / s (EDR), transmission speed more quickly Security: 128 bits safe mode Supports all Windows systems, including Windows, xp, vista, win7 win 8, etc Support EDR security mode Wireless transmission of documents, audio, video, wireless networking features such as wireless printing Wireless connected devices (such as computer / PDA / mobile phones / printers / wireless game controller) with Bluetooth technology Support VOIP voice calls seamlessly connect Skype software. Bluetooth specification V 2.0 & V 1.2 Compliant Supporting profiles : networking, Dial-up, Fax, LAN access , and Headset Plug and Play, no driver Length with only 1.9cm Working with led lights Weight: Approx 9g Easy and Convenient to use Package Include: 1 x Mini Bluetooth USB Dongle #DIYMORE #Mini #USB #Bluetooth #Adapter #Wireless #Dongle #For #Windows #XP #Win7 #Laptop #PC #Vista