DTMF(Dual Tone Multi Frequency) function will open the radio's squelch only when it receives a DTMF code that matches one pre-programmed into your receiver. Each tranceiver is normally programmed with a unique code.
Modular 8-pin plug with easy clip at the back
Easy to carry and to use Streamlined appearance Comfortable holding Strong, flexible and durable cables Clear sound performance Used on car radio/vehicle radios Comes with CE mark