Clarion CZ301 CD/MP3/WMA/AAC Receiver with USB Port CD/USB/MP3/WMA Receiver.CD/USB/MP3/WMA Playback.3.5mm Audio Auxiliary Input (Front).Bluetooth Interface Ready with Optional BLT370.Front USB Port with iPod Direct Connect Capabilities.Sirius Direct Connect Ready.HD Radio Ready with Optional THD301. 45 Watts x 4 Built-in Amplifier.4-Channel/2 Volt RCA Output (Front + Rear/Subwoofer).Subwoofer Volume Control.Built-in High and Low-Pass Filters.Magna Bass EX Dynamic Bass Enhancement.Parametric Equalizer. Beat EQ for Sound Adjustment.OEM Steering Wheel Remote Ready.Wireless Remote Control Included. Single-DIN AM/FM Radio, CD, CD-R/RW, WMA/MP3, USB, iPod Receiver 45W x 4 MOSFET internal amplifier with two 2V preamp outputs (front + rear/subwoofer) Front-panel USB port with direct iPod control, WMA/MP3 playback; 3.5mm auxiliary input HD Radio and SIRIUS satellite radio ready One-year manufacturer's warranty