Henretta Engineering Buffer

They say:

Maintain the integrity of your signal through long cable runs and big boards
full of true bypass pedals, and enjoy the enhanced feel and clarity you
can get from using a buffer. Buffer circuitry maintains volume while
juicing up the current, providing a super low impedance signal that will
get from your guitar to your amp without being loaded down by all of
the stuff you may have between.  

Dimensions: 2” x 2”

Power: External 9VDC power supply