Jiayouy Guitar Pickup 4 Band EQ-7545R Preamp Amplifier Equalizer Tuner Piezo Pickup for Acoustic Guitars

Descriptions: - Pre-wired for easy assembly - 4 bands plus volume control - Supplied with a battery box - Connecting wire with 2.5mm plug included - LED for battery check, replace battery when Batt lights. - Under the saddle pickup for acoustic guitar. Specifications: Material: ABS Color: Black Presence Control: ±12dB at 8KHz Bass Control: ±12dB at 600Hz Middle Control: ±12dB at 600Hz Treble Control: ±12dB at 2.2KHz Input impedance: 10MOhm Frequency Response: 20Hz - 20KHz Cell: 9V cells (not included) Pickup Dimensions: 10.5x 4.7 x 6cm. Package List: 1 * 4 Band EQ Equalizer 1 * End Pin Jack 4 * Mounting Screws 1 * Screw Cap 1 * Metal Washer 1 * Sticky Plate