Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Travel Aid

Great for travelers needing mixed voltage inputs. Will plug into just about anything anywhere; only a solar panel would make it more versatile! Smaller and lighter than any laptop charger I'm familiar with, and takes the place of an auto charger so you have one less device to tote and keep up with. Rather expensive unless you shop; don't pay over $50 unless you don't have the time to save money. Get the wind-up cord to go with it and you have the perfect world-traveler power package.