FORM-FIT PROTECTIVE IPHONETM CASE; SUPPORTS IPHONETM ; DOUBLES TALK TIME; ENGINEERED WITH IPHONETM UNIVERSAL DOCKING & IMPACT RESISTANT MATERIAL; SMART LED DISPLAYS BATTERY LIFE; INCLUDES BUILT-IN SHORT CIRCUIT, OVER-CHARGE, & TEMPERATURE PROTECTION; RECHARGEABLE OVER 500X; BUILT-IN PC BOARD & PROPRIETARY SOFTWARE; COMPLETE WITH BATTERY CELL ACTIVATION GUARANTEE