Delivering surround sound from a variety of sources, including computers, MP3 players, and DVD and Blu-ray players, the Auna HF583 speaker system also incorporates an FM radio receiver with station presets. Designed with an attractive, piano lacquered front, these Auna speakers include an active 10-cm (4-inch) subwoofer for the bass output, along with five additional satellite speakers measuring 8 cm (2.75 inches) in height. Highly versatile, the Auna HF583 speaker system features a USB port, an SD card slot, an FM antenna input, a stereo RCA audio input, and 5 RCA outputs for connecting to speakers, as well as a 5.1-channel input set. In addition to a frequency response of 40 Hz to 20 kHz, the Auna speakers have a signal-to-noise ratio of more tha 70 dB and channel separation greater than 45 dB. With the LCD display located on the subwoofer, these surround sound speakers have an automatic and manual tuner, as well as a sleep timer, among other features. The surround sound speakers are controlled by a remote control unit, which allows for easy access to a variety of features, including mute, which enable the user to immediately turn the sound providing by these Auna speakers off at the touch of a button.