The item is power tested only, i have no clue how to test it hence, selling as it is for parts or repairs. The item powers on and everything ok as shown in the uploaded photographs, no further testing was done. You will be receiving MIXER PLUS NEW ADAPTOR only and exactly as captured in the uploaded photographs. Please refer to the seller photos as they are part of the description. Any questions, please don't hesitate to contact me. Please note, NO RETURNS OR REFUND ACCEPTED. THANKS.