《Anonymous shipping, instant purchase OK, ships within 24 hours in principle》 This is the "WF-1000XM4," a legendary noise-canceling wireless earphone from SONY, in a collaboration model with "Demon Slayer," the Shinobu Kocho Ver. The color is black, and it's a set of the main unit and charging case. Both the left and right earphones have been replaced with new genuine Z55H batteries (unused after replacement). This is a used item that has been tested and confirmed to be working. While there are no major scratches, it is a used product with minor scratches, so please refrain from purchasing if you are overly concerned about the condition. Everything shown in the first product image is included in the sale. There are no smokers or pets in the family. ■ Contents ・WF-1000XM4 "Demon Slayer" Shinobu Kocho Model 　Earphone main unit: Right ear, Left ear 　Color: Black 　Main unit software: Ver. 2.1.0 (latest version at this time) ・Charging case "Demon Slayer" Shinobu Kocho Model 　Color: Black #WF-1000XM4 #DemonSlayer #ShinobuKocho #InfinityCastleArc #AkazaReturns Sony Model Name...WF-1000XM4 Other features...Noise canceling