1. It is made of ABS+brass material and has a long service life. 2. The wiring connection is convenient and safe, to avoid the possibility of short circuit caused by stray wiring harness, no welding is required, and the terminal surface is gold-plated. 3. Color: black + red 4. Pin diameter: 4mm 5. Wiring mode: red: positive; black: negative 6. Scope of application: used to connect speaker cables and from home theaters/audio video receivers/amplifiers and other sound systems 7. Function: make the cable connect to the audio jack without welding 8. Installation location: at the audio jack
