Functions: AM/FM/CD/CD-R/CD-RW/DIVX/MP3/WMA/AAC Watts: 200W (4x50W) Controls: Volume, mute, tuner, disc, display, seek, menu equalizer Display Type: M109: Single line LCD; M309: Dual line LCD Tuner: Digital AM/FM (M309 is Sirius/XM ready) Face Design: Flip-down Remote Control: Optional Preamp Outputs: M109: 4-channel RCA; M309: 6-channel RCA Waterproof: Yes Warranty: One year	Design 2-way Tweeter Design 1" Semi-dome Tweeter Composition Titanium-coated Woofer Composition Polypropylene Woofer Surround Santoprene Parts Warranty 1 Year Labor Warranty 1 Year Specifications Sensitivity 91 dB Frequency Response 40 - 23k Hz RMS Power Range (Watts) 2-50 Peak Power Handling (Watts) 100 Impedance (Ohms) 4 Top-mount Depth (Inches) 2 1/4 Bottom-mount Depth (Inches) N/A Cutout Diameter or Length (inches) 5