This is a set including the main unit and AC adapter. Only the original box for the main unit is included. Everything in the photos is what's being sold. The following text was generated by AI: The FX-AUDIO D302J+ is a pre-main amplifier that supports USB, OPT, and AUX connections, and features bass and treble adjustment. - Brand: FX-AUDIO - Model: D302J+ - Connection Terminals: USB, OPT, CDA, AUX - Features: Bass, treble, and volume adjustment - Power: AC adapter included Thank you for viewing.