WokTok M900 walkie-talkie is designed for family camping and outdoor adventures with kids! Easy to use and just press the push-to-talk button and you are ready to go.Not just for outdoors,no yelling at the bottom the stairs to ask what's she's doing or to come down for dinner.Small and compact,Kids can sefely use walkie talkies for hours of fun.Great tool for strengthening teamwork and building member communication skills especially parent-child interacton. WokTok walkie-talkies are professionally designed for versatility! Powerful key function:preset 22 channels, 121 Privacy Codes (38 CTCSS codes/83 DCS codes), provides an extensive frequency usage (up to 2178 combinations to help block other conversations). Keyboard lock function：Keypad lock function to keep you accidentaly pressing for charging channels and to make your communication more smoothly. Large frequency range:No more yelling through the house,the long distance walkie talkies can reach up to 5 miles in the open area with clear soundNOAA Weather Alert:NOAA Weather Alert walkie talky will alert ahead of abnormal weather when you're outside and allows you to easily get the latest weather conditions and forecasts.