The MLS-200-M10 external mobile loudspeaker is moisture and dust protected (equivalent to the IP55 Standard). It can handle 8 watts for noisy environment. It features a 10 foot shielded audio cable that terminates to a 3 conductor 3.5mm mini plug. 4 ohms. It comes with a bracket, screws. It is a great match with the Yaesu FTM-10R transceiver.
This speaker is wired to the tip (+) and ring (-) of the 3 conductor mini plug. Therefore it will not work with most amateur mobile transceivers. It is wired to work with Yaesu FTM-10R/10SR.