Description Sleek and compact, but packing a real punch, the Bump hybrid power pack provides that much needed boost for your handheld electronics when you're on the trail or on the go. Matching up to modern smart phones and digital music players, the Bump fits easily into your pocket or hooks to your car keys, so you'll always have that extra boost when you need it. Available with micro USB or Apple Connector. Features Water resistant housing Internal rechargeable lithium polymer battery 50 mA solar panel Power gauge and auto shut off Battery storage: 550mA Output: 1000mA/5v (USB 2.0 compatible) Compact and light weight, perfect for your keychain