Sandisk 4GB M2 Memory Stick Micro (SDMSM2-4096-E11M, Retail Package)
SanDisk Memory Stick Micro or "M2" is the ideal memory card solution for Sony Ericsson's new generation of slim line, multimedia mobile phones needing expandable storage for music, videos, and quality photos. The advantage of the M2 is compatibility with all M2 slotted mobile phones as well as all Memory Stick PRO Duo slotted devices when accompanied with the included M2 adapter.