Features 1、Exceptional Sound Performance: Experience sound with our 7 band sound equalizer, featuring a front end amplification gain and the 4580 operational amplifier that delivers an impressive 5 times amplification (14dB). 2、Headphone Compatibility: Our sound equalizer boasts a headphone amplifier circuit made from the NE5532 chip, designed to effortlessly drive various headphone types with adjustable highs and lows for your listening pleasure. 3、Versatile Connectivity: Equipped with a 3.5mm input output interface that supports both 3 pole and 4 pole plugs, our equalizer is suitable for regular voice calls with a microphone equipped headset, catering to both gamers and music enthusiasts alike. 4、Robust Design: Crafted from high strength aluminum alloy, our 7 band car sound equalizer ensures durability and stability, while efficiently running on a DC5V-12V power supply for 2 channel sound performance. 5、Enhanced User Experience: With easy to use functionality and sturdy construction, our sound equalizer elevates your listening experience, making it a very choice for audiophiles and casual listeners who demand sound quality. Specifications: Item Type: 7 Band EQ Equalizer Material: Aluminum Alloy Power Supply: DC 5V-12V Interface: DC5.5x2.1, 3.5mm Input Impedance:20K Output Impedance: 600Ω Equalization Circuit Control Range: ±12db Equalization Frequency Bands: 60HZ, 150HZ, 400HZ, 1KHZ, 3KHZ, 6.5KHZ, 15KHZ Package List 1 x Equalizer 1 x Data Cable