Sony Memory Stick Micro (M2) 1GB Fun Pack (Retail Package) Ultra small size Dual Operating Voltage (1.8V and 3.3V) supports cell phones and Memory Stick PRO harware Memory Stick PRO adaptor supplied Supplied Disc2phone software and USB cable supports music download from PC to Sony Ericcson phones Compatible with Sony Ericsson W300/W810/W800/W710/K790/Z710