Speaker, All Weather, Marine Communication, Overall Height (In.) 4 in, Overall Width (In.) 2 in, Overall Length (In.) 4 in, Enclosure Color Black, Enclosure Material ABS Plastic, Tweeter Dia. (In.) 1 in, Woofer Dia. (In.) 4 in, Woofer Composition Polypropylene, 4 W Watt (RMS), Max. Wattage 5 W, Sensitivity (dB) 88 dB, Impedance (Ohms) 8 ohm, Frequency Response 180 Hz to 6 kHz, Weight (Lbs.) 1.2 lb, For Use With Amplifiers, Tuners, Includes 10 ft Cable, 3.5 mm Miniature Plug