Please read CarefullyVintage 1983 Casio MT-800 Casiotone 49-Key Synthesizer with Original Detachable Speakers Complete with Original Casio Retail box Includes: Casio MT-800 Casiotone Keyboard Collection Of 3 x ROM Packs - Each One Is Different! Tons Of Great New Songs To Learn & Play With The Learning Mode includes 4 song books and (owners manual which is in japanese) language & 2 x Original Casio Stereo Detachable Speakers These Can Be Set To The Desired Angle & Locked In PlaceThe original box is in poor condition and will be reboxed This keyboard has great features to help you learn with ROM-Pack that can be removed and changed for others to increase your playing!! You can play along and it Condition - this is a used keyboard, with condtion commensurate with very light play and occasional use. This keyboard that im selling is in very good condition, even though its a vintage/retro keyboard from 1980s era!!The power supply is missing but i was able to Test the keyboard with a power supply from one of my other devises.you will have to purchase a power supply about $12.00 on ebay.It was not testeed with batteries. power supply is a 9volt + to -. All sliders and buttons have been checked and all work well,jacks are working,there is a bit of static which i noticed coming from the speaker sockets,i would recommend contact cleaner to clear it up. You can connect a Microphone & even tune the keyboard very precisely from flat up to sharp & anywhere in-between They dont make em like this anymore. has been in storage in my attic for many years. FINAL SALE ITEM NO RETURNS