1) high quality mp3 player 2) memory chip:samsung,hynix,micron 3) Lifetime warranty 4) Fast delivery 5) Portable Hot Sell 4GB MP3: Specifications:1 ... , 64mb, 128mb, 256mb, 512mb, 1gb,2gb,4gb~32gb Capacities:64MB,128MB,256MB,512MB,1GB,2GB,4GB,8GB,16GB,32GBFeatures:Capless switch-style ...