Retevis RT628 FRS Walkie Talkies 22CH 2 Way Radios VOX Long Range Walkie Talky(4 Pack,Black) FRS frequency and 22 channel 99 CTCSS to choose;protect your family communication safety 5 button easy to operate for everyone;not only for the elder but also for kids Clearly sound and quality will keep your smoothly chat with your family member or neighbors Dependable range work well for various environment;such as camping supermarket Simple and convenient return process;90 days warranty and 30 day return with no questions asked