I purchased these from Amazon this month for the list price of 62,000 yen, but after much deliberation, I've decided to use different earphones, so I'm selling these brand new and unopened. Brand: Bowers & Wilkins Wearing Style: Separate left and right, completely independent Earphone/Headphone Type: Canal type Color: Black Wireless/Wired Connectivity: Wireless Earphone/Headphone Features: Noise canceling, Microphone, Sound quality adjustment, Waterproof/Splashproof, Remote control Wireless Standard: Bluetooth Bluetooth Codec: aptX, AAC, SBC IP Rating (Waterproof Rating): IPX4 Drive System: Dynamic type Driver Size (mm): 12 mm Charging Port: USB Type-C, Qi standard Charging Time: 2 hours Weight (g): 14 g