Feature: 1. Great workmanship, the alloy material is coated with anticorrosive paint, which greatly improves the service life. 2. One-piece molding without burrs, the product with smoothly surface and easy to install. 3. The product has a large heat dissipation area, which can better maintain long‑term operation. 4. The working voltage is DC24V‑42V, and DC36V is recommended. If the voltage is too high, will cause serious heat. 5. Can be used with peace of mind, with strict quality control and quality assurance. Specification: Item Type: Power Amplifier Material: Aluminum alloy Model: TPA3255 Working Method: Class D Working Voltage: DC24V-42V (DC36V is recommended, if the voltage is too high, it will cause serious heat) The total output power (240W/4Ω) x 2 when the total harmonic distortion + noise (THD+N) is 1%, The total output power when the total harmonic distortion + noise (THD+N) is 10% (325W/4Ω) x 2 How to Use: 1. Accurately connect the interface according to the product identification; 2. Turn on the switch to use; 3. Turn off the machine after use, and then unplug the connector.. Package List: 1 x Power Amplifier1 x Antenna