Vonyx HDX120WBK Wireless BT DJ Headphones Black are wireless DJ headphones with BT 5.3 streaming and 40mm driver units. They provide up to 75 hours of music playback or 50 hours of talk time from the 650mAh battery. The headphones include 3.5mm and 6.3mm stereo inputs with a reversible cable for use with mixers, controllers, and standard audio devices. Soft protein ear cushions support extended wear, and one supplied cable includes an in-line microphone for calls.