This audio adapter cable is equipped with standard 3.5mm TS mono male plug and 2-way screw terminal block. It enables fast audio line connection without soldering operation. You can easily fix various audio wires by adjusting screws to finish circuit connection. High-quality inner wire core ensures smooth mono audio transmission and reduces external noise interference. It is widely applicable for AUX equipment, headphones, microphones, speakers and various audio device wiring modifications. 2 pieces in one pack fully satisfy your multiple usage and replacement needs.