The Bluetooth Adapter lets you add Bluetooth 4.0 wireless capabilities to a laptop or desktop computer through USB, with support for transfer distances of up to 50m (165ft). Reliable Connection Compliant with Bluetooth 4.0 LE +EDR, the USB BT4 adapter offers data transfer rates up to 3 Mbps and low power consumption when connected to your PC. This USB Bluetooth receiver is Smart Ready, providing an effective way to connect to a rapidly growing list of the Bluetooth Smart peripherals on the market, including the latest Apple and Android smartphones and tablets. Bluetooth 4.0 also integrates added security for all transfers using 128-bit AES encryption. Portable Design A conveniently portable device, this ultra-compact Bluetooth USB dongle is unobtrusive when connected to your laptop or PC, so you won't have to remove it each time you store your laptop in a carrying case or bag. The BT4 USB adapter is also backward compatible with previous Bluetooth standards (v3.0, 2.0, 1.2 and 1.1) to ensure connectivity with all your Bluetooth devices. Please Note: Ranges above 10 meters (32.8 ft) require the connected Bluetooth device to support Bluetooth Class 1 Bluetooth Class 1 adapter backed by a StarTech.com 2-year warranty and free lifetime technical support.