1. Material: copper core
2. Voltage: 12V
3. Stable performance
4. Applicable to various car models
5. Convert car stereo speaker output to RCA output
6. Convert high-frequency output to low-frequency output to achieve true channel separation and adjustable input sensitivity
7. Used for hosts without low-frequency (RCA) output (such as cassette players/card machines/VCD/DVD, etc.) to convert the speakers high-frequency output into low-frequency (RCA) output to the car amplifier or subwoofer