The battery life of a two means radio is very important. Some versions can last for as much as 15 hrs of continuous usage. Others are rechargeable via USB. You ought to know that some two way radios need AA batteries to power them. The battery life of a two method radio will certainly depend on the quantity of transmission you're planning to do. Some models need an FCC license to run. In addition, you should check whether your radio needs a certificate to run.