Thank you for viewing. High-quality in-ear monitoring earphones Sennheiser IE 400 PRO. I opened it for the photos, but it's unused. I received it from an acquaintance, but I'm selling it because I don't have a chance to use it. You can also make it wireless by using the separately sold IE PRO BT Connector. - Brand: Sennheiser - Model Name: IE 400 PRO - Type: In-ear monitoring - Accessories: Carrying case - Included ear tips: Ear tips in multiple sizes - Cable can be replaced Thank you for your consideration.