This speaker is in fantastic condition and has only been out of the box to test (remote and cable still sealed) very nice high end quality sound bar which sounds fantastic. - Acoustic Center Sync technology perfectly aligns the sound bar with your Sony BRAVIA TV's speakers - Fall in love with your favourite albums all over again with 360 Reality Audio and support for High-Resolution Audio - Supports 4K 120 Hz and 8K passthrough and Dolby Vision, so you can make the most of all your tech - Add rear speakers (sold separately) for Sony's unique 360 Spatial Sound Mapping which makes entertainment even more immersive - Stream music with Spotify Connect, Chromecast or Apple AirPlay 2 s/n:2003501 6 months warranty 2-3 working days dispatch we are a shop buy with confidence.