Product Description: When you watch TV, do you ever notice how the picture and sound are sometimes out of sync - the presenter's lips don't move quite at the same time as his voice? Irritating isn't it? This is known as lip sync error. And if you think you are alone with this problem, think again. Lip sync error affects a huge number of users of modern plasma TVs, LCD screens, DLP TVs and digital projectors. Felston's digital audio delays solve the frustrating problem of lip sync error for anyone with an A/V amplifier or home theater system.