This is a Guyatone PS-011 DISTORTION SUSTAINER. The item includes the main unit only. *Box, manual, adapter, etc. are not included. Operation has been confirmed. MADE IN JAPAN. There are some scratches and dirt (relatively good condition). It will be shipped via either Takkyubin Compact or Yu-packet Plus. *The shipping company may change depending on the situation, but the shipping cost and anonymous shipping will remain the same. I will not answer questions about the serial number other than the one shown in the image. ↓ Other Guyatone effects pedals are also on sale. ・PS-011 Guyatone Distortion Sustainer Guyatone #GTNPS011 ・PS-103 Guyatone Compressor Guyatone Old Model #GYTPS103 #EffectsPedal #Guyatone #Guyatone #Distortion #Distortion #MadeInJapan #GTNPS011