Stick with me, I need to qualify my response.I bought what I thought was the strongest Walkie on the mkt, a 50 miler by Uniden.Sure, it's strong, but I live in the mountains and everywhere you go is another canyon or hill/mountain, so they were pretty much worthless beyond a 1000'.The wife and I struggled with them on the property, creek to house 1000' away, had to find the perfect spot to stand to talk.After months of research I decided to buy the Beofang, and I'm beyond impressed. Now it doesn't matter where she walks, the signal comes through crystal clear, as if she were next to me.We did a little experiment, she drove to town, about ten miles away, crossing the American river and several mountains in between, about 2000' below my elevation, came in so clear, just like she was in the room.I give it 5 stars for actually working perfectly and beyond my expectations, but a few less for functionality, needs an easy squelch control but only when you're near electrical equipment.Also, it has a serious learning curve beyond simply turning it on and talking, referring to programming, but I only just bought it.Other than that, buy it, you won't regret it, I can't say enough good about it.I can only imagine just how well this would do on flat open ground, I'm guessing 50 miles wouldn't be a challenge.