Memory flash: 1GB
The Memory Stick Micro (M2) is designed to meet the growing storage needs of highly compact, multifunctional mobile phones.
Exchange data with standard-size Memory Stick PRO compatible products by inserting the M2 into the supplied adapter.
M2 is approximately one-quarter the size of Memory Stick PRO Duo media, and only about 1.2 mm thick.
Because it's dual-voltage it can be used with both mobile phones (1.8 volts) and Memory Stick PRO compatible products operating at 3.3 volts.

Sony Memory Stick Micro (M2) Specifications：
-Supplied with Memory Stick Micro adaptor (MSAC-MMS) for use with normal Memory Stick slots.
-Memory: 1GB
-Dual voltage: 1.8v and 3.3v
-Memory Stick interface (serial / parallel)
-Average operating current: max 65 mA (serial transfer); max 100 mA (parallel transfer)
-Memory Stick PRO compatible
-Compatible with copyright protection technology ("MagicGate")
-Minimum write speed: 15 Mbps
-Environmental temperature: -25oC to 85oC non-condensing
-Dimensions (W x L x T): approx. 12.5 x 15 x 1.2 mm
-Weight: approx. 1 g
-Supplied accessories: M2 adaptor (MSAC-MMS)

MemoryStick Micro Compatibility:
New cameras/video cameras with a memory stick micro slot.
Memory Stick PRO compatible products using the supplied adapter.