Features: 1.Wide Compatibility: Professional power filter is suitable for most DC 12V devices and compatible with car stereos receivers, equalizers, amplifiers, speakers, etc. 2.Reduce Audio Noises: Amplifier noise reducer is able to reduce noise generated by the cigarette lighter or the other electronics to get crystal clear sounds from the car speakers. 3.Improved Sound Quality: Audio power filter improves the quality of the audio signal by filtering out noise and interference signals from the power supply, resulting in better audio results. 4.Advanced Material: Stereo power supply filter is made of high class ABS, which is wear resistant, sturdy and durable and has a long service life. 5.Easy to install: Stereo noise suppressor reducer is designed to be easy to install, saving time and money on installation costs. Specification: Item Type: Car Power Filter_x000D_ Material: ABS_x000D_ Voltage: 12V_x000D_ Description: 12V car radio stereo power supply relay capacitor filter line motor noise car stereo power supply filter, 12V universal all car series car power supply filter anti interference anti flicker screen stable current filter