Audiopipe Atvp3200 Two 8 Speakers W/ Built In Amplifier Amp Water Resistant Color: Black Specification: Speaker Size: 2 x 8 Frequency Response: 45-25KHz Sensitivity: 90dB Impedance: 4 Ohms Power Voltage: 12V Total Power: Power (Max): 350 Watts Power (RMS): 175 Watts Dimensions: 9(H) x 32(W) x 12(D) Weight: 22 oz.