Capture and store documents, videos, games and digital pictures on this SanDisk SDMSM2-004G-E11M Memory Stick Micro (M2) Memory Card! This 4 GB Memory Stick Micro provides high capacity storage for your Sony Ericsson mobile phone and is backwards compatible with all Memory Stick Pro Duo devices*! It supports Sonys MagicGate encryption technology and features a controlled ejection design for easy removal!