Powertraveller gives users the ability to generate their own power from a small, compact unit, whatever situation they find themselves in. The waterproof capabilities are not compromised even when the unit is charging a device. The power monkey explorer 2 is waterproof for 30 minutes in up to 1 metre of water when used with the supplied cable. The waterproof capabilities are not compromised even when the unit is charging a device. The ridged, anodised casing provides a secure grip, even if hands are cold or wet and the cylindrical design makes the unit ultra-strong. Compatible with iphones / smart phones, mobile phone, ipods / mp3 / mp4, ipads / tablets, psp / hand-held / games consoles, sat-navs / gps, head torches handsets. Manufacturers 2 Year (1 year fabric) guarantee.