Features: brand new and high quality Large Heat Dissipation Area: The 70W power amplifier board has larger heat dissipation area which can prolong the service life, so as to better maintain long-term operation. And this feature can make you feel assure of the product. High Safety Factors: The power amplifier board has strict quality control and quality assurance, which has high safety factors so that you can use the power amplifier board with confidence. Sturdy Material: The power amplifier board is made of high-quality materials, which has exquisite workmanship and long service life. We believe that because of the performance the power amplifier board will be definitely your best choice. Easy Installation: The power amplifier board does not require particularly complicated operations, and supports simple installation. And we are sure that the feature of the power amplifier board will draw your attentio. Precise Technology: The power amplifier board adopts the precise technology of many experts and has strict performance requirements to ensure the power amplifier board extremely reliability. Specifications: Material:PCB Power supply voltage: 13.8V Current: 6-10A Input power: 5W Output power: 70W Frequency range 3.5-30Mhz Size: Approx.50x100mm/1.97x3.93inches Package Includes: 1x Power Amplifier note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.