Retevis Bluetooth Mobile radio RT99 is released. It supports the mobile phone APP.  It is a mobile radio with dual band VHF 136-174mhz &  UHF400-470mhz. As the mobile radio, the high power of RT99 is UHF 40W VHF 50W. Channel space with wideband 25khz and narrowband 12.5khz. The big difference is this mobile radop RT99 […]