SE-5N 5 Band EQ Equalizer Pickup Tuner for Acoustic Guitar Musical Instrument

Specifications: Condition: 100% Brand New Material: Metal+Plastic Weight: Approx. 133g / 4.7oz Color: Black Pick-up: Piezo Ceramic Pick-up Input Impedance: 10M? Frequency Response: 20Hz-20KHz Control Range: Bass: (+/-)12dB at 60Hz, Middle.1: (+/-)12dB at 450Hz, Middle.2: (+/-)12dB at 2KHz, Treble: (+/-)12dB at 3.5KHz, Presence: (+/-)12dB at 10KHz Output Jack: 6.35mm & XLR Output Jacks Power Supply: 1 * 9V Battery(Not Included) Size: Approx. 7.6 * 4.6 * 2.5cm / 3 * 1.8 * 1.0in(Equalizer), 5.5 * 4.5 * 5.5cm / 2.2 * 1.8 * 2.2in(Battery Box) Package list:  1 * Equalizer 1 * Battery Box 1 * Pickup Bar 1 * Glue Cushion 1 * Plastic Tie 8 * Screw Battery is not included.