The simpler Motorola models are better. I have some of the original 'yellow' Motorola FRS units that are unbeatable, you can get them on ebay all the time for $15 each. The T5710 5 mile units use batteries faster and one of mine looses channel set every time the power is cycled. Not certain the 5 mile signal claim is worth it, and it only works on the lower 7 channels.