The Mini Buffer pedal is the ultra compact pedal that brings your tone back where you want it.
What happens when you have long cables or lots of effect pedals is that the capacitance and the resistance starts taking away from your tone, because cable and wire has resistance which takes the sparkle away from highs, and your bass will start becoming flabby. The buffer retains your guitar and amps original tone just like you had a really short cable and nothing else in the chain. Even if you have non true bypass effect pedals, this will still help your tone because the buffers used in commercial effects are really poor. With true bypass effects your original signal is going straight to your amp but the resistance of the guitar cables and wire within the pedal will start breaking the signal down.