Columbia Portable Record Player, Made in Colombia With microphone mixing function / For 50 Hz use ⚠️Cannot be used in 60 Hz regions. I have confirmed the operation for this listing. The speed control also functions correctly. It is currently in good condition, but I have not tested the microphone mixing or 78 rpm playback. It does not have an auto-return function. Everything needs to be done manually. There are no noticeable scratches or stains on any parts. The metal parts are also solid. Please consider this item with the understanding that it is an old product. Thank you. ⚠️Regarding 50 Hz regions In Japan, the power frequency is approximately 50 cycles (50Hz = Hertz) east of the Fuji River (Shizuoka Prefecture) and Itoigawa (Niigata Prefecture), and 60 cycles (60Hz = Hertz) to the west. However, please note that there are mixed areas of "50Hz" and "60Hz" near the border.