Copy & pasted from Argos website:
The most popular and best way to carry your music, videos, photos, games, files and applications on phones.
8GB microSDHC memory card. (Class 2)
Compatible with most mobile phones with a microSDHC card slot.
Stores up to 5200 photographs, 2000 3.5 minute songs or 32 hours recorded video.
Manufacturer's 5 year guarantee.