1,SIM CARD BACKUP 2,Save 1000-group number and name 3, 2G / 3G compatible Sim card backup 4,Battery ( ... /3G compatible SIM card reader.2. LCD screen to rolling browse the name and phone number.3. Password protection and PIN code unlocking ... .4. Capacity 8KB (601A), 16KB (601B) and 32KB (601C) optional, with 1, 2 & 4 folders separately, storing ...