Sandblasted aluminium has been used for the casing of the iPower TOUGH 2 external battery pack, which is dust and splash resistant in accordance with international standard IP65. Its sides are enclosed with a robust rubber layer that also makes the device impact-resistant. The circular aperture on the rubber casing allows for the attachment of a snap hook. With a dual-USB output, the 9,000 mAh capacity makes the charging of two devices at once possible. Thanks to modern LEDs, the battery can also be used as a torch.