Amazon.com: Sound Town 16 Channels Wireless Microphone Karaoke Mixer System with Optical (Toslink), AUX and 2 Handheld Microphones - Supports Smart TV, Home Theater, Sound Bar (SWM16-PRO) : Musical Instruments
Amazon.com: KOMISON Wireless Bluetooth Microphone System Karaoke Mixer, Microphones, Audio Interface, Optical (Toslink), USB,Smart TV, PC, for Karaoke, Wedding, Singing, 280FT : Electronics
Amazing optical microphone can separate multiple instruments from afar