This is W (Double) Numero Deux. It's a high-end model from the Japanese manufacturer Radius. It was released around 2012 and had a retail price of 21,800 yen. It's a super rare earphone in excellent condition, having been hardly used. The sound is unique and energizing. It's hard to describe, so please give it a listen. I think the design is beautiful and wonderful. I've only used it a few times and kept it as part of my collection, stored in its case. The ear tips that aren't attached to the main unit and the leather case are unused. I don't think you'll find it online, but please search and then come back to take a look. I will take measures to protect it from rain and ship it in a cardboard box. I also have other rare earphones for sale, so please take a look. https://jp.mercari.com/user/profile/952956361 #DoubleNumeroDeux #Radius #WiredEarphones