Chris Daioglou, a Greek hardware developer, created the DreamConn, a wireless controller for the Dreamcast that used bluetooth technology. A third party developer for the Dreamcast, Docs, had previously released a wireless controller for Dreamcast, but since it used infrared technology, it didn't have a very wide range, requiring the user to sit in front of the receiver to play.
The DreamConn has a built-in lithium battery with a 3 hour battery life, and uses mini-USB to charge. It also has internal memory that represents two VMU units. It supports a real VMU that can be inserted in slot one to view game artwork and battery usage, and it supports a rumble pack in slot 2. It was first released on July 17, 2015 through an auction on eBay.