Feature: 100% brand new and high quality Quantity:1pcs Size: Approx. 4.33 x 2.6 x 1.54 inch / 11 x 6.6 x 3.9 cm Total harmonic distortion: ＜0.1% SNR: 90dB Frequency response: 20～20KHz Degree of distortion: ＜0.02(1KHz) Output power: 500W X 2CH（AT14.4VDCINPUT） Supply voltage: 9-15VDC Material: Metal + Plastics Note : Power cord (Output 12V， ≥3A ) is not included.Package Content: 1 X Mini Amplifier 1 XPower Line 1XLoudspeaker Wire