Turn your Phone into a Ultimate Mp3 Player with a Premium SD Memory Card! SD (Secure Digital) memory cards are the latest generation memory devices that offer an incredible combination of high storage capacity, fast data transfer rates, great flexibility and excellent security in a memory card about the size of a postage stamp! Based on nonvolatile memory components and encased in a protective molding they do not require power to retain the information stored on them. Since they are based on solid-state components they have no moving parts to skip or break down making them highly reliable. FEATURES 10 year life span with up to 1,000,000 erase cycles Weighs less than 1 gram  Available in a variety of high capacities High transfer rate for fast download and copy Low power consumption, maximized battery life Selectable Write Protect Switch: protect data overwrite 100% Compatible with digital devices that use Secure Digital Highly Durable: Store, erase and reuse Tough: Designed to withstand rugged weather Dual Voltage works with 1.8 and 3.3 Work with existing SD card slots 2GB SD Card for Cell Phones  Most competitors and brand name manufacturers use an inferior memory chip (SLC) which don't compare to our standards. Theirs: 3 year life span / Ours: 10 year life span Theirs: up to 100,000 - 500,000 erase cycles / Ours: 1,000,000 erase cycles Theirs: 33X data transfer rate / Ours: 66X data transfer rate Theirs: 1-3 year warranty / Ours: Lifetime warranty 66X (speed) data transfer rate = faster transfers! 8X = 1.2 MB/sec 12X = 1.8 MB/sec 20X = 3.0 MB/sec 25X = 3.8 MB/sec 30X = 4.5 MB/sec 40X = 6.0 MB/sec 60X =  9.0 MB/sec 66X = 10.0 MB/sec