Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Weak at best

Tried this product for about a week. My roommate has a mobile unit mounted in his car. On transmit, he could hear me about about 1/4 mile, no further. On receive, I could hear him for maybe 1/2 mile or so. Tried it out on the highway, could only get snippits as I went by. Go with a mobile unit with a big antenna if you actually want to have something that works. Better yet, get your HAM ticket and get 50 watts of transmit!