The Best DealOriGlam 5 Band EQ Pre-Amp Equalizer Pickup, Acoustic Electric Guitar Preamplifier Tuner with LCD Tuner and Volume Control for Acoustic Guitars Complete Kit Five-Band EQ - Volume Control, Presence Control, Bass Control, Middle1 Control, Middle2 Control, Treble Control, tuner Power on/off button. Great Tone And Pickup Range - The Complete Kit offers great tone and pickup range, and is made to be installed in the body of any standard acoustic Guitar. Amplify Acoustic Guitar Sound - The 5 Band powered pre-amp Pick-up unit includes all you need to add a pickup to your acoustic guitar and amplify their sound. Easy To Read - LCD display, easy to read. Professional guitar and bass tuner Auto and manual tuning mode. Frequency, Power - Frequency Response: 20Hz - 20KHz, Power: Powered by 6F22 9V battery (not included)