The bag is Multi-function， you can put some phone accessories intoit， such as headset，so do not worry your phone accessories lose，and you can put your money & cards &documents into it. soyou could leave the wallet at home. in a word， the bag is amulti-function bag.The back cover of the phone bag can beseparated， becasue there are some magnet inside the back cover. soyou if you are at home or at office， you can separate use the backcover， it is very convenientuff0cmeanwhile，the back cover is protectingthe phone. so your phone always been protected.With interior creditcard slots and a document pocket， the Leather-Style Wallet case isperfect for storing anything from your passport or note paper， totrain tickets and receipts.Offering excellent protection in astylish package， the Wallet Case for the phone has a leather-effectouter lining and interior that keeps your phone looking as good asthe day you bought it. It is padded to provide good protectionagainst minor impacts.This case is made specifically for use withthe phone， so it offers a perfect fit and does not impede the useof any of the functions， such as the power and volume buttons，headphone and charging ports and rear camera.