After a bad buy for our daughter only disappointment brought (walkie talkie with 200m operation range), I have gained this model. The operation is really easy, the batteries (or AAA batteries) are made to last and the voice quality is great! The range of 6 km can not be achieved in the city, however, about 1 km is achieved there. I was surprised by the size of the device: Very small (about 10cm plus 3cm antenna), but for children's hands still good to use. The confirmation tone at the end of an announcement and automatic squelch are really comfortable. I can only recommend the device.