This is the Behringer PP400 MICROPHONO Ultra-Compact Phono Preamp.
Boost the sound quality and level of your turntable.
The ultra-compact PP400 features stereo RCA Inputs and Outputs, as well as a ¼ ” TRS Output jack. Thanks to the PP400’s incredible low-noise operation, your vinyl records deliver sound exactly as it’s read from your turntable’s needle. We’ve also included the 12 V adapter you’ll need to power this awesome little gem.