Two way RadioFCC ID ; 2ASV6-T5A. walkie talkies have 22 FRS channels plus 99 sets of CTCSS tones (privacy codes),The continuous tone-coded squelch system gives you up to 2178 combinations to help block other conversations.one-to-one or one-to-more communication function allow more walkie talkies to communicate on the same channel. VOX-Hands Free FunctionWalkie talkies for adults have easy voice and sound activation transmission (VOX) with 3 sensitivity levels for hands-free operation.you can keep in touch with friends and families at any time when you camping adventure or in a crowded supermarket. Long Distance Walkie TalkiesWalkie talkie can reach 3-5 miles communication range 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 0.6-1.2 miles. Adverse weather, car(Iron material), voyage and buildings will affect the range. The actual distance depends on the obstruction of the current environment. Back-lit LCD Screen and LED flashlightThis walkie talkies has bold green back-lit LCD screen provides high visibility in night. Built-in LED torch can be used as both flash and emergency light.Small Size and light weight, Hard and durable shell, drop-proof. walkie talkie let you and your family enjoy games or outdoor adventures