SONY WF-SP900 Wireless Earphones - 2 Sets Junk Everything in the photos is included. These are used items from about 4 years ago, so there is overall wear and tear, such as scratches, stains, and yellowing. There are no instruction manuals. The condition of the rechargeable batteries has not been checked. Even if the rechargeable batteries run out, they will be left as is without being recharged. For the first set, I connected the included USB cable to charge it, and I was able to pair the left earphone with my smartphone. This model disconnects if the left and right earphones are separated by about 25 cm or more, and reconnects automatically when brought closer together, so I was able to confirm sound from both ears by bringing the right earphone close to the left earphone. I have not checked the tap operation. For the second set, I connected the included USB cable and charged it, but the orange light just kept on for half a day. The orange light on the right earphone was dim and flickering. I tried to pair it with my smartphone, but the green light did not come on and I could not connect. Both chargers seem to have a charging function because the orange light on the earphones comes on again when the earphones are put back in, even after the chargers are unplugged from the power source. I was able to confirm the connection between the earphones and a computer, but I have not checked the data inside. I was able to confirm sound from one set of earphones, but not from the other. Due to the inability to guarantee the operation of either set, including other functions, and the lack of quality assurance, these are considered junk items. Please purchase with the understanding of this. Please understand that these are junk items. Individual sales are not possible.