Restoring & optimising audio signals, the S-Master Digital Amplifier technology is able to sharpen & enrich dialogues, music & sounds from any source, whilst the optimised playback combines the unique technologies from Sony with the Clear Audio+ so you can listen with increased clarity & separation. Adding bass into the mix, the wired dynamic subwoofer will boost your movie soundtracks with a rich source of sound. Connect wirelessly to the soundbar from your Smartphones easily using the Bluetooth connector or Near Field Communication (NFC), NFC means that you can simply touch your device to the soundbar once for an instant connection, but if you don't have NFC then you can connect to the Bluetooth manually. Plug in & play music from your USB (Universal Serial Bus) stick into the side panel of the soundbar, & with an optical input you can link your TV, DVD or Blu-ray players up to it to enjoy the crisp sound from any device.