The Mooer Audio Yellow Comp Optical Compressor Pedal is an optical compressor guitar effects pedal. The Mooer Yellow Comp features a classic optical compressing sound with smooth attack and decay. Furthermore, it preserves the original signal transients perfectly. This pedal has two working modes, Normal and Treble. The Normal mode features a normal sustain of low noise, long sustain is obtained. The Treble mode has an emphasised sustain of high frequency. This pedal features a full metal shell, and a very small exquisite design, with true bypass and requires a DC 9V Adapter power supply.
I purchased this pedal for the gig/traveling reason. I don't know how durable it is, but so far no complains, and sound is surprisingly decent. The weight & size really helps for traveling... I haven't used it for the recordings yet, but I may try it after the touring.