The Xperia Ear features an "Assistant" function that provides voice support when you want to make calls or check messages. By installing the Xperia Ear plugin (Asuna), you can change the assistant's voice to Asuna. This is a special collaboration edition sold for a limited time in a special package at the Sony Store, and is now discontinued. The specifications are as shown in the photos. Please refrain from purchasing if you are sensitive to imperfections or details. Official app support has ended. Please consider this a collector's item and purchase it on a no-claims, no-returns basis only.