The backlit microphone can directly input the keyboard frequency or the keyboard memory channel call. During transmission, the microphone allows manual input of DTMF tones for automatic patching. Four user-programmable soft keys are provided on the microphone, allowing you to put frequently used menu items or front panel key functions at your fingertips. Compatible for Yaesu most mobile radio stations. Professional manufacturing, stable performance and high reliability. Feature: 1. The backlit microphone can directly input the keyboard frequency or the keyboard memory channel call. 2. During transmission, the microphone allows manual input of DTMF tones for automatic patching. 3. Four user-programmable soft keys are provided on the microphone, allowing you to bring frequently used menu items or front panel key functions within easy reach 4. Compatible with most Yaesu mobile radio stations. 5. Professional manufacturing, stable performance and high reliability. Specification: