I purchased this used in July 2025, but I haven't used it much. It's a compact and practical equalizer. Body only. Operation confirmed. All lights illuminate, the sliders move smoothly, and there is no crackling. As shown in the last photo, the sponge used to hold the battery in place inside the case has deteriorated and is missing, but this does not affect its use. This is a 6-band EQ effects pedal that allows for sound quality adjustment.