The MVH-S522BS is designed to accommodate the Smartphone lifestyle. When using Pioneer Smart Sync with Amazon Alexa it opens a new world for this Digital Media Receiver. Using this application, you can broaden your access may it be wired or wireless. The receiver has a built-in amplifier and is equipped with three RCA pre-outs at 4V each. It has a 13-band customizable graphic equalizer and when utilizing Pioneer Smart Sync increases to 31 bands. The crossover network can be either Standard Mode or Network Mode. Features include Pioneer Smart Sync App with Amazon Alexa, Bluetooth®, has USB direct control for iPhone® and much more.