Blackbox vhf mobile radio features: public safety radio easy install 200 channels high power 55w vhf 136-174mhz frequency range optional field programmability alpha-numeric display narrow and wide band option alarm/stun/2-tone/5-tone conventional network scalability package includes: dtmf microphone, power cables, mounting bracket, user manual note: radio programming service is optional. please contact us for details of the programming service.