Bra allows the wearer to use the tighter hooks as the bra stretches during its lifetime. Bras may be designed to enhance a woman's breast size, or to create cleavage, or for other aesthetic, fashion or more practical considerations. Nursing bras are designed to aid breast-feeding. Compression bras, such as sports bras, push against and minimize breast movement, whereas encapsulation bras have cups for support. Breast support may be built into some swimsuits, camisoles and dresses. Bras come in a variety of styles, including backless, balconette, convertible, shelf, full cup, demi-cup, minimizing, padded, plunge, posture, push-up, racerback, sheer, strapless, T-shirt, underwire,
Shelf stereo commonly use 2.1, 5.1, 6.1, and 7.1 speaker setups that provide true surround sound. Shelf stereos can accept different types of media. Many stereos come with or have the ability to connect: The size of 2010-era shelf stereos has also changed. Many of the popular stereos are one connected piece as opposed to multiple speakers that separate from a main unit. Among the new one-piece shelf stereos are the stand-alone iPod speaker system. These systems are made primarily for the use of iPods and utilize an iPod dock. Shelf stereo The term shelf stereo refers to any home stereo system