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 an M2™ adapter.