Update: Since the creation of this article, Bluetooth Passthrough has been created as a new option for Wii Remote connectivity. By taking over the drivers of a Bluetooth Adapter, it allows unprecedented support for Wii Remote features, including the speaker and even 3rd party Wiimotes. However it doesn't work on all bluetooth adapters, and requires some setup to work. Even though it may not be the best option anymore, the DolphinBar remains a very easy all-in-one option for Wii Remote functionality, and we still recommend it for users. The DolphinBar does not current work with Bluetooth Passthrough.
When we first heard about the Mayflash DolphinBar, we were immediately intrigued. Hardware that complements emulators has always existed in some form, like the various controller adapters we commonly use, but never has one benefited an emulator quite this directly. A USB sensor bar, with integrated Bluetooth? A fascinating opportunity! The devs immediately purchased one and sent it to a tester for analysis.