I bought the walkie talkies for my granddaughters. That was a big hit. They should serve in the garden / on the playground to a better understanding. However, the moment they are everywhere companion. The units themselves are very handy and not susceptible when they fall down through the rubberized edging times. The only thing one needs Umgewöhung, is the talk button on the left side. For the fingers of the right hand, it is rather difficult to press this button. Now will grow accustomed to the left and with the thumb it works better. The upper limit of the distance has not yet been tried, at 2 km there has worked wonderfully. Even the understanding of the elevator worked fine without any disturbance. The walls (plate) are not understanding obstacle. Conclusion: The devices are thoroughly recommended, value for money is totally ok. Soon to be mom and dad still down such devices.