This high-performance car equalizer features seven equalization bands that are adjustable from -12 decibels to 12 decibels. It is professionally manufactured for guaranteed quality. Equip your car with this sophisticated equalizer. 

• 7 equalization bands at 63Hz, 250Hz, 500Hz, 1KHz, 2.5KHz, 6.3KHz, and 10KHz.
• User-friendly design.