Two-way radioFCC ID2ASV6-T5A. The walkie talkies have 22 FRS channels plus 99 sets of CTCSS (privacy codes) tones, the continuous tone squelch system gives you up to 2178 combinations to help block out other conversations. One-to-one or one-to-many communication function allows more walkie talkies to communicate on the same channel. VOX Hands-free FunctionAdult walkie talkies have voice and sound activation transmission (VOX ) easy with 3 sensitivity levels for hands-free operation. you can stay in touch with friends and families at any time when you are camping on an adventure or in a crowded supermarket. Long Distance Walkie TalkiesThe walkie talkie can reach a communication range of 3-5 miles in open areas such as rural areas, suburbs or seaside, etc. where there is no shelter. If in cities or towns, walkie talkies can reach 0.6 to 1.2 miles. Bad weather, car (iron material), travel and buildings will affect the range. The actual distance depends on the obstruction of the current environment. Backlit LCD Screen and LED FlashlightThis walkie talkie has a bold green backlit LCD screen providing high visibility at night. The built-in LED torch can be used as both a flash and an emergency light. Small size and light weight, hard and durable shell, anti-drop. The walkie talkie allows you and your family to enjoy outdoor games or adventures. After-sales service assurance provides 30-day money back and lifetime customer service. If you have any questions, please email us through the Amazon platform. , we have professional engineers who can solve your problem as soon as possible.