Acoustic Guitar 4-Band EQ Equalizer Preamp Amplifier Piezo Pickup`
<strong>Features:</strong> <br> With this equalizer, you spend less time tweaking controls and more time playing. <br> Shape sound and eliminate feedback with 4 bands of equalization. <br> Tone and volume control with frequency range from 20 HZ to 20 kHZ. <br> With bass, middle, treble, brillance, volume, mic-level control knobs. <br> LCD to show intonation for adjustment convenience. <br> The battery check indicator will light when the power is low. <br> 1 pick to amplify the sound. <br> 1 small sticky plate helps to fix the power leads. <br> 4 mounting screws connect the guitar firmly. <br> Connecting wire with 6.35mm plug. <br> Powered by 6F 22 9V battery (not included). <br> <br> <strong>Specifications:</strong> <br> Input impedance: 2.2MΩ <br> Frequency response: 20Hz～20KHz <br> Bass control: ﹢/﹣12db at 80Hz <br> Middle: ﹢/﹣12db at 500Hz <br> Treble: ﹢/﹣12db at 3KHz <br> Presence: ﹢/﹣12db at 15KHz <br> Brillance: ﹢/﹣12db at 15KHz <br> Power supply: 9V AIkaline battery <br> Item color: Black <br> Item size: 8 * 6 * 4.5cm / 3.1 * 2.4 * 1.8in <br> Item weight: 96g / 3.4oz <br> Package size: Approx. 11 * 7 * 6cm / 4.3 * 2.8 * 2.4in <br> Package weight: 115g / 4.1oz <br> <br> <strong>Package list:</strong> <br> 1 * EQ <br> 1 * Connecting Cable <br> 1 * Pick <br> 4 * Mounting Screws <br> 1 * Sticky Plate <br> 1 * Cable Tie <br> <br> <strong>Note:</strong> <br> The batteries are not included.