Thank you for viewing. I am selling these earphones because I am replacing them. Operation has been confirmed. (See photo 4) There are no problems with normal use for about 1 hour of continuous playback, but the battery may not last if used for nearly 2 hours. The sound quality is so amazing that it can be compared to the latest high-end models. There are no major scratches, but these are used items, so please refrain from purchasing if you are sensitive to such things. Brand: SENNHEISER (Sennheiser) Model Name: MOMENTUM True Wireless 2 Color: Black Connection Type: Bluetooth, Noise Canceling Sennheiser Model Name: MOMENTUM True Wireless 2 Other features: Noise Canceling Thank you very much.