Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Must have

These are terrific little units with awesome range.I keep a pair in every car I have for trips to Costco, the Mall, Seaworld or wherever.My only complaint if the NiCAD batteries. They do get a memory if you don't use them a lot. NiMHD would have been a better choice considering the way you'll likely use them. The batteries will lose their charge whe sitting unused so they are less available for last minute emergency use.