Features :

• Ergonomic, Form-Fitting, Fully Protective Ultra-Resistant Case-And-Battery-In-One For Your Phone
• Integrated Power Switch Allows You To Switch On/Off The Battery Case. Only Use The Battery When You Need It
• Use Breakthrough Rechargeable Lithium Polymer Battery
• State-Of-The-Art Battery Technology Extends The Life Of Your Phone For Hours
• Check The Power Status At A Glance With An Integrated 4-Light LED Status Indicator. Know Before You Go!
• It Allows You To Charge And Sync Your Phone While Refilling Your Battery At The Same Time
• Built-In Short Circuit And Over-Charge Protection. Safety First!
• Rechargeable For Over 500 Cycles.