Tera Grand Sound Enhancer and Multifunctional Case for iPhone 5/5s - Retail Packaging - White Physical sound-enhancing: The sound-enhancing orifice inside this product enables an iPhone's volume to be amplified by 12 dB without any energy, thus bringing you better sound experience. Desktop holder: The turndown physical supporting structure provides transverse and upright supporting modes for your iPhone. Dust-proof socket: The dust-proof plugs of the data line and headphone sockets prevent tiny particulate build up. Lightweight design: Professional lightweight groove design could lessen product weight effectively as well as keeping support strength. Comfortable hand feel: The raised multifunctional turnover structure makes for a comfortable grip which conforms with ergonomics in your daily life. Designed Specifically for iPhone 5/5S, not for iPhone 5C