Featuresr protective case back up battery and power bankr slim and stylish serves as a protective case when not charging the phoner a fully protective hard shell case with the minimum added bulkr small and convenient enough to fit easily in your hand or in your pocketr enough room for earbud hole which is suitable for any other brands earbudsr perfect accurate hole design for both onoff key volume control earbud slot and camerar the powerful 4000mah li polymer rechargeable battery ca