Built-in front IC, improve input sensitivity, high-definition sound quality.Efficient Class D operation, 90% power efficiency and low idle loss characteristics, advanced modulation system configuration, multiple switching frequencies, AM interference rejectionReduced PSU requirements with feedback power stage architecture with high PSRRThe device provides comprehensive short circuit, overtemperature, overvoltage, undervoltage and DC fault protection. If overloaded, the device will report a processor failure so as not to damage it.The onboard op-amp chip TL074C, after the sound source is input, first enters the op-amp chip compatible with amplification, and then enters the power amplifier chip to make the volume more shocking.Material:ABScolour:As shownPackage Contents:1 * chip1 * connecting lineOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.