10English USB / AUX PlaybackOrUSB IN1a. Connect the USB cable between the Leftspeaker 4 and your computer.L4AUX IN1b. Connect a 3.5mm stereo cable (notincluded) between the Left speaker 5and your music player, smartphone orother analogue device.L5ConnectPlay* It is recommended that the X300A Wireless be used with Windows 7 and Mac OS 10.6 & above operatingsystems.2a. For WindowsI. Play and enjoy your music.2b. For Mac OSI. Choose “System Preferences” from the Applemenu.II. Click “Sound”.III. Click the “Output” tab.IV. Select “KEF X300A Wireless” from the device list.V. Play and enjoy your music.