Retevis H-777 2 Way Radio Walkie Talkies UHF 16CH CTCSS/DCS Flashlight Walkie Talkies with Earpiece(5 Pack) All of them can work together and also could set up to different frequency using for different department USB charging base and emergency LED light is very handy when you are trip or outside to work Low power alert and high power battery capacity will provide protection for your long time working Easy to operate and crystal voice empower your business with a simple and fast way to communicate We provide 1 year warranty for radio body and 30 days for accessories;30 days no reason to return including the accessories