I usually have very favorable reviews, but this unit is poor at best. I wanted to use for motorcycle communication between bikes, but when I tested the unit, it would only work for about 100 yards from one hand held unit to another. I drove down the street, and before I even went 1/10 of a mile the unit stopped working. It only works when literally standing next to each other. The ONLY way the unit barely works is to have connected to external antenna (which is still very limiting). My advice is to just get good GMRS or FRS radios from Midland or some other manufacturer as they work better and are significantly cheaper.