Samsung htj4500 5 speaker 3d blu ray and dvd home theatre systemwith six speakers the htj4500s powerful surround sound system puts you at the heart of the action small enough to be hidden away but big enough to have a serious impact 51 surround sound delivers superb audio 51 channel surround soundcatch up tv appsblu ray 3ddolby digital plusdolby digital true hddtsdigital surrounddts hd master audio1 x usb1 hdmi 1 x digital outputbluetooth