Do not need license,it is legal in US. Whether how many Retevis RT32 Walkie Talkies, it will work as long as the walkie talkies use the same channel and CTCSS
Whether you are trying to keep an eye on your child or your little one is just playing these, they are all a perfect choice
The small and portable walkie-talkies feature 22 channels and 10 Call tones,Keystroke Tones Get audible tones with each key press for response or confirmation and Power Saver Circuitry that extends battery life when not transmitting or receiving.Power with 4 X “AAA” batteries (Not Included)
Keypad lock prevents your personalized settings from being inadvertently changed
Easy to Use:
A simple talk button is highly visible and easy to find by touch. Its small size makes it convenient to carry around, even for smaller hands.It intended for ages 4 and up
Notifies you of incoming calls with a tone over the unit’s speaker
It allows clear communication without disturbance or interference(Earpiece not include)
Good Sound Quality:
Crisp and smooth sound quality with adjustable volume level, auto squelch function will mute the background noise so you get the crisp sound even in crowded places.
More Reliable than Cell Phone:
Having a family outing or out-of-town trips with friends but signals for mobile phone is not reliable? You can count on this FRS/GMRS dual-service walkie talkie supporting 22 channels with great sound quality. No more worries for signals problems, take it and use it anywhere at anytime!
What’s in box:
2 x Retevis RT32 Walkie Talkies
2 x Belt clip
2 x sling
1 x English Use’s manual
Note:The Energizer batteries may fit better than the Duracell batteries.