Description For Blend 301 Classical Acoustic Guitar Pickup Preamp EQ Equalizer Tuner Amplifier Piezo Mic Beat Description: brand new and high quality Features: Small footprint fits many guitars Volume Control Bass, Middle and Treble control knobs Built-in tuner with LED display Phase switch Unique pivot design for instant 9-Volt battery access Pre-wired pickup for solder-free, plug and for play installation Low profile control knobs Onboard anti-feedback control Brilliance control for additional tone shaping Built-in microphone with mic blend level control Specifications: Material:Metal,Plastic Size:55x80mm2.17x3.15(approx) Color:Black Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1x Onboard Preamps 1x End pin jack 4x Screws 1x Manual 2x Mounting brackets(other accessories demo in the picture is not included.)