describe:1. [Intelligent system]: automatic squelch system, automatic monitoring function, automatic memory function, automatic scanning function, automatic power saving, low battery reminder2. [Main parameters]: 22 main channels and 121 privacy codes (2662 combinations), long distance in different terrains (up to 1/4/16 miles), ultra-long standby time (up to 3-4 days) ), powered by 3 AA batteries (not included)3.Humanized Design: Palm size, light weight (2.9 ounces), hands-free function (VOX), keypad lock (channel lock), adjustable power and volume, LCD screen with backlight, strap with lanyard hole Clip, 2.5mm dustproof headphone jack plug, durable and environmentally friendly material (ABS)4.Various Occasions: Our adult walkie talkies are easy to operate and carry even for children. So they are suitable for indoor and outdoor activities, such as home, shopping mall, CS games, camping, hiking, cycling, cruises, road trips, etc. With this walkie talkie for adults, you can stay on the phone with all or all of your family members. Simultaneous travel partners5.Professional Service: All adult walkie-talkies have obtained the latest FCC certification, so you can return or exchange them for any reason within 30 days. If you have any questions, please feel free to contact us via email, we won't let you downSpecification:Product dimensions LxWxH: 6.3 x 1.97 x 0.98 inchesItem weight: 2.9 ouncesInternational protection grade: IP65Maximum calling range: 16 milesNumber of channels: 22Package includes:2 x intercom