This listing is for the earphones only. I was using them until recently, so they still work well. The battery on the right side drains faster, but I didn't really mind because I was using them with the case. They charge to over 50% in just a few minutes. Reason for no case: I originally bought these used for about 10,000 yen as a secondary pair and loved them, but I dropped the case on the street. I realized it and went back to look for it, but when I found it, it was in pieces (see photo 6). The earphones themselves have no noise and sound normal. I think they will be out of charge by the time I ship them, so please charge them using the case of your XM4. The ear tips are size L. Price negotiations are welcome. #Sony #Bluetooth