[n2oinferno]

Review, if anyone wants to read.
http://radartest.com/article.asp?articleid=100588

The Escort Passport Solo S2 is unquestionably the most sophisticated, high-performance cordless radar detector on the planet. But having witnessed the lackluster Ka-band sensitivity of past competitors, the Solo would need to deliver better performance--by an order of magnitude--to win me over.
After a week spent field-testing this cordless model, I'd say it has succeeded. In the Straightaway Test the Escort Passport Solo spotted the lethal Ka-band radar from 5,325 feet away. It was even better against X- and K-band radar. This would be superior performance for a corded model; for a cordless detector it's little short of an engineering miracle.