How to programme RT81 radios quickly

How to programme multi-RT81 radios quickly is topic we will discuss, Normally RT81 with default factory frequency radio so you only press PTT key to talk when RT81 take out of package box. Most of the clients don’t only buy a few, If you meet one of them can’t talk with others, please try to programme them again, There’s a very simple way that introduces how to programme RT81 radios quickly.