Sound Town SWM15-PROS wireless microphone karaoke mixer system with supports HDMI ARC optical (Toslink) smart TV media box PC bluetooth soundbar receiver AUX. The Sound Town SWM15-PROS is a compact karaoke microphone mixer system. It comes with dual-channel 8 selectable UHF frequencies per channel (16 channels in total) and is interference-free. The HDMI 3.5mm (1/8in) input and output connectors and built-in Bluetooth make it easy to connect with various devices including TV box smart TV home theater systems receivers speakers soundbars amplifiers notebooks tablets and more. The microphone receiver and sound mixer enables you to mix mic signal with music without using an additional mixer. It comes with two wireless microphones and can support two wired dynamic microphones (not included). The rotatory control knobs can swiftly adjust the volume of your music microphone echo and tone to the desired level. It is ideal for karaoke DJ music and house parties.