TEQIN 18W DMX512 Voice-activated Color Changing LED Disco Stage Light for Party, Ballroom, Club, Pub, Bar, Stage, Hotel, Theater, KTV, Concert(Black) It suitable for regulating mood, Apply to family gatherings to sing several occasions karaoke OK, dance halls, nightclubs, discos, bars, KTV bars, shopping malls, plazas, parks and other use. Strobe lighting effect included with 7 DMX channel; Sound-activated and rotating speed adjustable at lighting Link the lights with DMX cable, power them, turn to DMX setting(A001 at LCD display), allow 1 second for pairing, then control either of the lights, the other lights will work at the same lighting patterns.(DMX cable not included) Please note: the item built-in fan to heat dissipation, the voice come from the fan when working is normal "Packaging Details: 1pcs Mini LED Butterfly Light (16*12.5*13.5cm) "