The Asus USB-BT500 is a Bluetooth Smart Ready USB adapter with the new Bluetooth 5 features. The USB-BT500 allows wireless connection to a wide range of devices such as computers, printers, telephones, headsets, speakers, keyboards and more. Bluetooth 5.0 for faster, more coverage – transfer data up to twice as fast as before and with four times the range in BLE Unlimited wireless connection – allows wireless communication with devices that support Bluetooth Full compatibility – backward compatible with Bluetooth? 2.1/3.x/4.x Ultra small design – highly portable and easy to use. Technical parameters Standard: BluetoothR 5.0 + EDR and Bluetooth Smart (Bluetooth with low power consumption) Interface: USB 2.0 type A Data transfer rate: Up to 3 Mbps (classic BT-BR/EDR); 2 Mbps (BLE) Distance of use: Up to 10 meters (classic BT-BR/EDR); up to 40 meters (BLE) in open space Frequency band: 2402 ~ 2480 MHz Spectrum: FHSS (Frequency Hopping Spread Spectrum)