Efficient and powerful, the DEH-P440 features Pioneer's MOSFET50 power supply, which delivers 50 Watts x 4 of clean, musical sound. Sound Focus EQ gives you individual control of the bass and treble levels of your front and rear speakers, so you can set up your own custom sound fields. A two-way crossover gives you added flexibility in setting up your system, and a pop-up rotary volume knob gives you a better feel than an electronic control (it's easier to grab and work with). The DEH-P440 is CD-changer-ready and XM Ready, and it comes with a slim remote, a flap face, and detachable face security (with a case provided). Premier's two-year warranty applies.