YAESU MLS-200 WATERPROOF Speaker FT-7900 FT-8800 FT-8900 FT-2900 FT-1900 MLS-200 HIGH POWER Mobile Loud Speaker Can be used with all radios that have a 3.5mm connector like Yaesu FT-1802M, FT-1807M, FT-2800M, FT-7800R/E, FT-8800R/E, FT-8900R/E, FT-2900, FT-1900 and most mobile radios! Power Input: 12 Watts Impedance: 4 Ohms