Jewel cube speaker has long been the standard for prodigious sound from a small design, one omni Jewel center speaker, and 4 on Jewel side speaker, 1 HDMI output with audio return channel or 5 HDMI inputs, Dolby Digital / Dolby Digital Plus / Dolby TrueHD / DTS / multichannel PCM audio format supported, Acoustimass wireless bass module, Bluetooth / Wi-Fi and Apple AirPlay 2 compatibility for wireless music streaming or 4K video compatibility.