Bluetooth Adapter ASUS USB-BT400:This is a mini Bluetooth module for your computer or laptop. The module supports Bluetooth 4.0 and with the Bluetooth Low Energy technology it guarantees efficient wireless connection. Its reach covers the range of up to 10 metres with a data transfer speed of up to 3 Mb/s. It enables wireless communication with PCs, printers, phones, headphones, speakers, keyboards, remote controls and other Bluetooth compatible devices for all versions of Microsoft Windows OS.Specifications: Version: Bluetooth v4.0Transfer speed: Up to 3 MbpsRange: 10mInterface: USB 2.0Supported OS: Microsoft Windows XP/Vista/7/8Dimensions: 19.47 x 16 x 8.1mmWeight: 2.2g