Retevis H-777 2 Way Radio Walkie Talkie UHF 16CH Flashlight Handheld Two Way Radios (15 Pack) Large capacity battery allow you charge 2-3 hours and then you can use it for 8-9 hours continuous use or longer Emergency alarm and built-in Led torch make things easier when in dark environment Voice prompt function make it easy to figure out the channel and easy to change to new channel The 50 CTCSS/105 CDCSS keep you away from the irrelevant call which allow you do some private exchanges We provide 1 year radio body warranty and 30 days no reason to return including the accessories