Hands-Free Feature :walkie talkie support voice activation(VOX) talking---relax kids hands, send your voice without pressing the TALK button. It is helpful in outside adventures, hiking, camping, riding and other different activities. Best memory gift Compatible family. Useful Functions : 22 Main Channels 462-467mhz (FRS/GMRS) with Sub-channels, ensuring 2 miles wireless communication. When using the CTCSS (Continuous Tone Coded Squelch System), you are free to use 99 low frequency tones (67-250mhz), your signals will not be disturbed with this strong anti-interference perCompatiblemance. Friendly Design : Portable and easy to use, 1.2m drop resistant, built-in flashlight Compatible playing at night, day and night companionship. with cool exterior, compact bodies, ergonomic design, channel lock function and simple push-to-talk operation, intended Compatible kids aged 3 and up., Easy to Use : Modern compact design. Simple push to talk operation, double click to activate a beep single. Broadcast to one or multiple units, ability to use different channels. Perfect Gift Compatible Children : Kids LOVE to chat by these well-made walkie talkies, its a perfect choice to present your child directly. Great Compatible both indoor and outdoor activities such as going shopping, spring outing and summer camping.