1、Brand new and high quality Car Audio Converter. 2、For hosts without low frequency output (such as for cassette player/card machine/CD/VCD/DVD, etc.). 3、Converts the horn's high frequency output to a low frequency output for use as an automotive power amplifier or subwoofer signal input. 4、Made of high quality aluminum material, anti-wear and durable. 5、Easy to install, just use after correct wiring. Features: Brand new and high quality Car Audio Converter. For hosts without low frequency output (such as for cassette player/card machine/CD/VCD/DVD, etc.). Converts the horn's high frequency output to a low frequency output for use as an automotive power amplifier or subwoofer signal input. Made of high quality aluminum material, anti-wear and durable. Easy to install, just use after correct wiring. Specification: Condition: 100% Brand New Material: Aluminum + PCB Color: black Input voltage: 12V Package List: 1 x Car Audio Converter 1 x Harness