What kind of batteries do they use?
This walkie-talkie is used in three normal AAA batteries or three rechargeable batteries. Do not mix old and new battery and rechargeable battery.
How about its sound and reception?
These two way radios communicates effectively within 5 kilometers in open field. Wonderful sound quality will mute any noise without all the static for any indoor and outdoor activities.
If I purchased 2 sets would all 4 work together?
Of course they will all work together, you just have to make sure that they are all on the same channel. Even more sets can all work together as long they are all on the same channel.
Do they have VOX function?
Yes, VOX mode automatically transmits the message when it is activated by kids’ voice. If you are busy with your two hands, you can open the VOX function, and call your friend whenever necessary.
Can we use it for hiking?
You can take it to any outdoor activities, camping, hiking, picnic, just make sure the distance is in 5 kilometers.