Amp is fully functional

The Crossfire XP3204 4 Channel Car Amplifier delivers 320W of RMS power and is fully functional, making it a powerful choice for enhancing your car audio system. With its 4 channels, this amplifier allows for plenty of connectivity and flexibility for customizing your audio setup. The product comes with free shipping for added convenience, making it a great deal for car audio enthusiasts looking to boost their sound system.