Manufacturer...CASIO Product Name...Stereo Headphones Included Items...Box / Main Unit / Conversion Plug Model Number...CP-16 Color...Black (see image) Other...Please check the manufacturer's website for size/function details using the model number. Can be used when playing the piano. Condition...Used, Excellent Condition. Works perfectly. Used only briefly 1-2 times, so it's in overall clean condition. [Compatible Models] LK-350it, LK-250it, LK-160PC, LK-88CD, LK-58, LK-38, WK-3500, WK-1800, WK-1200, CTK-731, CTK-691, CTK-671, CTK-591, CTK-571, CTK-481, CTK-130, MA-150, SA-35GY, SA-5GY, AL-100R, AP-65R, AP-33C, AP-33, AP-25, PS-3000, PL-40R, PS-20, CPS-7, LD-80, LD-50, LK-250it, LK-160PC, LK-88CD, LK-58, LK-38, LK-20, CTK-731, CTK-691, CTK-671, CTK-591, CTK-571, CTK-481, CTK-130