Advanced Bluetooth 4.0 The Asus USB-BT400 Bluetooth USB Adapter uses advanced Bluetooth 4.0 so that your laptop or computer can wirelessly communicate with a variety of devices. New capabilities New Bluetooth 4.0 capabilities allow you to use this very compact but very useful wireless adapter to communicate with Bluetooth-enabled computers printers phones headsets speakers keyboards controllers and other devices.The USB-BT400 USB Adapter is the versatile communication solution you\'ve been wanting for your laptop helping you stay fluidly and constantly productive and connected as you compute on the go. Wireless connection options You\'ll be able to communicate with all manner of Bluetooth-enabled items as the USB-BT400 is backwards compatible with Bluetooth 2.0 2.1 and 3.0 when operating in dual mode. Enjoy energy-saving wireless connectivity with Bluetooth Low Energy technology another streamlined facet of this highly portable and useful USB adapter.Make sure you can connect how you want to on the go when you use the Asus USB-BT400 Bluetooth USB Adapter. .