Portable power pack, mobile power pack, power pack, power packs, pack to power, power supply for IPHONE, power supply, bank powe Features1.With two ... and outdoor activities.SpecificationItem No. PP853-66 with waterproof, shockproof, crash proof and strength shell . Specification ... is effective within one month.*** waterproof, shockproof, crash proof 6600mAh Item No.PP853-66 power supply, bank power