This ultra small memory card will also allow you to exchange data to Memory Stick PRO compatible products with the help of a M2 adaptor. M2 media is designed as an externally removable media with a controlled eject function to prevent loss. Following the trend of mobile phones, which operate at 1.8 volts, the M2 has been designed as dual-voltage media. The Sandisk M2 memory stick is compatible with all M2 slotted mobile phones allowing you to expand the storage space in your phone.