It's a rugged but sleek one-piece co-molded battery case. MERC 3 technology combines genuine aerospace grade carbon fiber with injection molded polycarbonate to create a rigid chassis that resists twisting and bending. HIT (high impact TPU) co-molded top and bottom offer extreme impact protection.

• Co-molded HIT (high Impact TPU) technology provides extreme protection at both ends

• Parallel insertion of mobile phone prevent damage to your phone charging port

• Soft raised rubber screen-lip. Completely protects screen when the phone fall off

• This battery case built-in metal plated, you can place phone on the magnetic mount while you are driving (magnetic mount not included)

• Quickly and effectively solves the low power problem for your devices while on-the-go

• Provide drops and shocks protections for your phone as well

• With LED light for indicating charging status

Specifications:

• Marked Capacity: 4000mAh

• Actual Capacity: 2800mAh

• Input: 5.0V 0.5-1.5A

• Output: 5.0V 1A

• Charging Time: 5-6hours

• Input Current: 1A (MAX)

• Dimension: 143*74*13mm

• Weight: 99g