Description:

The frequency of most of the handheld walkie-talkies on the market is 400-470MHz, and the max output power is 5W. This makes the effective talking range about 5-8KM(only in wide-open area). In some areas such as in the city with tall buildings, the range is only 1-2 km, or less.

In order to have long-distance communication, we need a repeater.
Standard repeaters have a high cost, and can be complicated to install, so there was a need for a simple and inexpensive repeater.  
The operation is very simple, and no  power supply needed! You do not need to change any part of the radio. All you need is just two handheld radios and connect the cables to the external mic/spk ports (2.5mm&3.5mm). You now have a very practical small repeater!

Functions:
With this RPT-2D Two Way Radio Repeater Box, both of the radios can transmit and receive in VHF band or UHF band.

Package Content:
1 x RPT-2D Two Way Radio Repeater Box