Provides 45 extra hours of power. Military-grade IP68 certified. Water Temperature Dirt and Shock proof design. Smart-Sense ensures device compatibility. Hyper-charge provides ultra-fast charging. Power-stay maintains battery power. Max-power provides a maximum power transfer. High-density battery. Safe-cell provides a high level of battery safety. Rapid-recharge charges up to 60% faster than competitors. 2 USB ports deliver 2.4A output. Rechargeable 5200mAh battery. 1-Year manufacturer warranty. Dimensions: 1"D x 2.2"W x 4"H.