My 'near' elderly parents have this model of radio for when they go shopping, boot sales, intercom use in the house and as a form on communication between convoy vehicles.
I helped test and found them simple to use, with nice audio on the transmit and receive. Loud and quite clear for a small radio. Display is large and helpful. The unit fits nicely in the hand.
Battery life on receive only is about 30 hours which of course would be radically reduced with x amount of transmit use. Battery powered radios are not really for chin wagging on. With that in mind, in reality they should easily last a full day on receive with the occasional brief transmission of messages.
Binatone tell no fibs about the range. The instructions give a simple, diagram/chart of expected ranges vs terrain. With *upto* 2km in built up area and 8km in open terrain.
No matter what make or model, ground wave UHF radios like these will have limited range. They are effected by the terrain and weather conditions.
Ideal conditions for these type radios are "line of sight", nothing in between to absorb or reflect the signal, no buildings, trees, falling snow, fog.... MOUNTAINS! It is in true line of sight when you can achieve and even exceed the maximum *usable* ranges claimed by the manufactures (in this case 8km).
Soon as you take away the direct line of sight, start adding walls, trees and so on, the signal will starts getting absorbed and the range decreased.
Think of your local town, different densities of building plots mixed in with open plots of land and roadways. Different materials used in those buildings such as glass, brick, concrete slabs, metal. Slight hills and valleys you are not normally often aware of when driving through on way to work. Couple all those characteristics of your local town with the fact that radio waves can bounce off surfaces and get reflected in all sorts of random directions it means there is not an exact science to state the range of these radios in the urban environment.
In reality you might be able to use the radio at 1,2,3km or more in one part of town but have no radio communication with each other only 200metres away. You might have good radio signal in one spot, walk a few strides away and find the signal is terrible and unusable. As long as people can bare those realities in mind and it fits in with their expected radio use then they will get along just fine with these walkie talkies. If wanting life or death comms in every part or town then these and many other types of radio (even professional) will be unsuitable.
A lot of range problems can be addressed by holding the radio upright when using the radio. Holding it at weird angles will effect the range. A radio in the horizontal position will have trouble picking the radio waves from the other radio(s) held in the vertical position and vice versa.
In all, a quality product for the price but do not expect it or any other PMR radio to defy the laws of physics.