micro sd card for mobile can be used for any style mobile ,camera ,pad cumputer ,music player and others micro sd card for mobilecan be used for any style mobile ,camera ,pad cumputer ,music player and others Features: 1.capacity : from 512MB to 4GB 2.Voltage:1.6V-3.7V 3.size :24*32*2.1mm 4.speed: read 10m/s ,write:2-3MB