●Please be sure to read the profile before purchasing(!) We refuse payment at convenience stores (!) {Junk item} Casio MT-31☆Casio Tone early model☆ This is an early model derived from the masterpiece Casio MT-40's Slentone. ◯ Sound output confirmed on all keys using genuine Casio adapter (Casio AD-1) ◯ Tone switching malfunction. Some tones can be switched, while others cannot. It can be played without problems with the default tone. Sustain and vibrato are also effective. ◯Cannot be used with dry batteries (springs have been cut) All knobs are missing. Line Out output confirmed. (Please purchase with the understanding that it is junk, only for the default tone.) Please read the entire profile before purchasing. As this is junk equipment over 40 years old, it will be shipped as {current condition}. This is a junk item, so please only purchase if you understand(!) Only the main unit will be shipped. Please read the profile before purchasing (!) ●Please refrain from purchasing for resale purposes or for overseas sales agents. ● Please do not resell this item on eBay etc. before purchasing. Also, do not use images without permission. [!] ● Please refrain from purchasing if you are a new user, or plan to pay via convenience store or ATM. m(__)m It takes up to 7 days for shipping. ●Please purchase with the understanding that this is used vintage equipment/sold as-is. ●Please refrain from purchasing if you have 3 or more negative reviews. m(_ _)m ● Please refrain from purchasing if you require several days for the pickup evaluation after arrival (including at the delivery office). m(._.)m ● Due to preparation of packing materials and work circumstances, it may take up to 7 days for shipping. ʕ⁎̯͡⁎ʔ༄ ● Non-smoking, no pets, stored in a cool, dark, and dehumidified environment. ʕ•ᴥ•ʔ Vintage Synthesizer Casio MT-40 Sleng Teng Reggae reggae Casio VL Casio PT Casio SK Casio MT Casiotone Portasound Casiotone Portasound Yamaha PSS Yamaha PSR Rhythm machine Sequencer Analog Synthesizer SP-404sx Roland MC Techno