YAMAHA TW-E7B (B) Noise Canceling Earphones Functionality confirmed. The sound quality is clear and, as you'd expect from Yamaha, easy to listen to. Confirmed continuous playback for approximately 5 hours. I believe there are no noticeable scratches or stains. (Please refer to the photos) They still function perfectly, so I hope someone can use them. ▪ Noise Canceling ▪ Listening Care Advanced ▪ Ambient Sound (External Sound Input Function) ▪ Gaming Mode ▪ JIS Waterproof Protection Grade IPX5 equivalent (Excerpt from the manufacturer's website) Includes: Main unit, charging case, USB charging cable Only size M ear tips No box or instruction manual https://jp.yamaha.com/products/audio_visual/headphones/tw-e7b/index.html #Yamaha #YAMAHA #FullyWireless #NoiseCanceling Other features... Noise Canceling