The AV230 from Vuzix is a specially designed personal big-screen display that will transform your small portable DVD player's screen into a large, private, virtual 44" home theater. Worn like a pair of sunglasses, the AV230 also includes separate focus adjustments and built-in removable high quality stereo headphones (or use your own.) An in-line rechargeable battery is built into the single cable for 4-5 hours of enjoyment. Purchase the optional DVD player for a great portable home theater experience. Enjoy movies in 2D or 3D and take the viewing experience to the next level! Includes carrying case.