Personal Audio SystemSRS-X99Parts and controls (Remote control)This Help Guide refers to the buttons on the speaker for explaining operations.1. (on/standby) buttonPress to turn the speaker’s power on and off. The (on/standby) indicator flashes and lights up when thebutton is pressed.2. USB-A buttonPress to switch the speaker to USB-A mode.Press to listen to music in a device connected to the USB A port ( A).The USB-A indicator lights up when the button is pressed.3. USB-B buttonPress to switch the speaker to USB-B mode.Press to listen to music in a USB device connected to the USB B port ( B).The USB-B indicator lights up when the button is pressed.4. VOLUME +/- buttonsPress to adjust the volume.The (on/standby) indicator and reaction indicator flash according to the volume adjustment when pressed.The VOLUME + button has a tactile dot. Use the tactile dot as a reference when operating the remote.5. MUTING buttonHelp GuideHow to Use55