So you don't have to physically be attached to a peace of equipment to listen to audio privately. The future of audio is wireless. Not being tethered to something, or figuring out how to run wiring to connect devices, is the ultimate evolution for everything. Giving developers incentive to improve current technology, innovate new ideas, and compete with each other will bring this revolution around sooner rather than later, and will drive prices lower, making the convenience of wireless affordable for everyone, without sacrificing sound quality, or causing undue inconvenience over the current hard-wired standard.