JOYO EQ MP3 3 Band EQ Equalizer System Tune and Your Acoustic Guitar, JOYO Brand

3-band preamp EQ equalizer, features accurate tuning, backlight LCD display, battery indicator light.color:#c0392b;color:#c0392b; Rotate to adjust frequency(bass, middle, treble) and volume level, very convenient.line-height: 20.8px;line-height: 20.8px; Connect with external speaker and audio inputs, press to control playing from memory card or USB disk. Lightweight, compact 3-band equalizer, well fitted into acoustic guitar, allows easy tweaking controls, for better performance. Package include: 1 x EQ equalizer, 1 x piezo pickup rod, 1 x battery box, 10 x mounting screws, 1 x base, 1 x cable tie.