The Shnobel Tone Clean Boost pedal gives you up to 27db of clean uncolored boost of volume, its an IC style circuit that is perfect for boosting your overall signal for solos or to push signal into a another pedal or a tube amp. 
 
The boost pedal is only 4.4 Inches tall and 2.4 Inches wide with top mounted In/Out jacks and a standard center negative power jack that supports a 9-18v operation. 
 
When the pedal is in the off position it acts a unity gain buffer. 
 
Boost Pedal Specs
 
Power 9-18v
Input Impedance 576K
Output Impedance 50K