• Plug and Play， recharging your phone wireless anywhere anytime when you playing your phone or making a call.
• Support Charge and data-sync， recharging the case and the phone at the same time; 4200mAh capacity Maintain one day power needs. 4 LED Light show the remaining battery capacities.
• Sleek & Durable & Light-weight & Super-slim design for great fit in your hand and pocket， Charging and protecting 2 in 1.
• Flexible design with easy access to all buttons and ports (except S pen).
• PLEASE NOTE: When you attach the battery case to your phone， and then charging them， it'll be charging the battery case only， even the battery case full charged， will not charging the phone. It doesn't charge both the phone and the case at the same time. Although this is a design defect， but when you go out， this battery case is a mobile power， but without using cables， it's very convenient.