4-Band Presys Blend 301 Acoustic Guitar Pickup Preamp EQ Tuner Piezo Mic Beat

4-Band Presys Blend 301 Acoustic Guitar Pickup Preamp EQ Tuner Piezo Mic Beat 4-Band Presys Blend 301 Acoustic Guitar Pickup Preamp EQ Tuner Piezo Mic Beat. Specification: Material:Electronic + plastic shell; Color:Black; Application:For Acoustic Guitar; Size:(L)X(W)X(H) 83X55X40mm /3.27"X2.17"X1.57"(appr.); Features: -Brand New and high quality. -Tone and volume control. -Built-in tuner with LED display. -With phase and tuner function. -Suitable for most of many guitars. -Built-in microphone with mic blend level control. -4-band equalizer, rotate bass/middle/treble to adjust volume frequency. -Unique pivot design for instant 9-Volt battery access, the battery not included. Presys blend quick start: 1.Set the controls: Set volume.mic blend and notch off. Set the bass.middle and treble controls to center. 2.Plug in: Connect the presys blend to an ampl