Buy with confidence as my feedback speaks for itself.  
Up for grabs is The Dual Boost is a versatile, dual-mode, transparent clean boost, housed within a compact, pedalboard friendly enclosure.

Constructed with the goal of delivering unrivaled sound quality, in an easy to use package, the Dual Boost pairs the highest quality components with an on-board charge pump circuit that delivers a pure audio path, superior dynamics, and wide dynamic range, all from a single 9-volt battery or 9-volt regulated power supply.

The Dual Boost features two independent modes, (each with their own Boost and Hi-Cut controls), a global Boost Range switch (+10dB/+20dB), and our proprietary mfx (Multi-Function Technology) switching. No matter what your needs may be, the Dual Boost offers a comprehensive solution to preserving and boosting your signal without changing or coloring your original tone.