This backlit speaker microphone works like an -48A6J microphone. It allows the direct input of the keyboard frequency or the Channel memory from the keyboard memory. When transmitting, the speaker microphone allows the manual entry of DTMF tones for the use of autopatch. Four user-programmable "soft" keys are provided on the microphone, allowing you to carry frequently used menu items or front panel key functions, to the fingertips this microphone speaker is made of material . compatible mobile radios: FT-7800R FT-7800E FT-7800 FT-7900R FT-8800R FT-8800E FT-8800 FT-8900R FT-8900E FT-8900 FT-2800M FT-2800M FT-1900R FT-1900E FT-1900 FT-2900R FT-2900E FT-2900 FT-1500 FT-1500M FT-1802 FT-1802M FT-1807 FT-1807M FT-1900 FT-1900R ... FT-2600M FT-2600 FT-2800 FT-2800M FT-2900 FT-2900R FT-3000 FT- 7100 FT-7100M ... FT-8100M FT-8500 FT-8500M mobile radio, etc. Colour:Black Material:ABS Package Contents: 1* DTMF Speaker Mic 1* MIC HANGUP CLIP 2* Screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.