Price reduced and changed to include shipping (estimated 120 size). Power on and playback were possible, but the sound would cut out intermittently. It is not fully functional. The right channel worked fine for a few minutes. The left channel's sound cuts out sometimes. The faders and filters mostly worked. This manufacturer's products have excellent sound quality. Also, touching some buttons causes the sound to suddenly cut out. The operation of the right channel is not guaranteed. Please understand. I believe there are no missing or damaged knobs. For those who can perform maintenance or for parts. Box and AC adapter included.