External Speaker Product Type External Speaker Compatible Radio Type Desktop Compatible Radio Brand Icom Compatible Radio Series 7300 7610 7700 Compatible Radio Manufacturer Model Number IC-7300 IC-7610 IC-7700 Maximum Input Power 5 W Rated Input Power 3 W Voltage 110 V AC Material Plastic Impedance 8 ohm Overall Height 6 1/2 in Overall Length 5 in Overall Width 5 1/2 in