Black Guitar Pickup 3 Bands Eq Equalizer Guitar Preamp Equalizer Piezo For Ovation Acoustic Guitar Preamp System Volume Control Features: Pre-wired for easy assembly. 3 bands plus volume control. Pickup, tuner and equalizer system for acoustic guitars. Manual guitar tuning mode. Mounted in front of the piano, suitable for someone who plays the guitar with his right hand. Descriptions: Bass Control: ±12dB at 600Hz Middle Control: ±12dB at 600Hz Treble Control: ±12dB at 2.2KHz Input Impedance: 10Mω Frequency Response: 20Hz - 20KHz Specifications: Material: Plastic Color: Black Size: 95*42*58mm Package included: 1 x 3 Bands EQ Equalizer Notes: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.