They are ideal for use out in the woods and lake and are used as backup radios in case the main ones fail. Pretty good range if not in urban surroundings. The battery life is excellent at a ratio of 1-hour (rx) : 1 min (tx). The supplied chargers are flimsy but the batteries can be recharged with any good 3.2v Li-Ion smart charger & alligator clips, mains powered or solar