However, I was taught, for these two devices are well made surprise. The voice quality equivalent to what I expected. The built-in LED is bright enough to run a campsite without tripping over tent cords. The range of 5km I can not confirm that. I have on flat ground without building or the like between them, an estimated 2-3km hammer out (perhaps lies also on the quality of the batteries).
The Send button is relatively difficult to operate, especially for small hands might be a little difficult.
Self-explanatory, the device is not, therefore, a quick look in the manual is needed.
For buyers who want to use this product on major events, but I can say directly that the 8 channels are not enough and you most likely to strangers divides the channels.
In spite of everything, I would buy this product again - for the price alone.