Instruct: Classify Amazon reviews into positive or negative sentiment
Query: About to return the second unit

I've been disappointed twice by this unit. I bought one and had to return it; I'm about to return the second.Neither worked well, transmitting about 10 feet out of the box. The power adjustment doesn't look like the one in the pictures, so maybe that ability to broadcat further is now no longer an option. What a disappointment.Comments and suggestions welcome.