New Marine Dual AM425BT Marine Boat CD MP3 USB Receiver with Motion Control and Bluetooth Stereo Audio Player with 6 X Dual Electronics 6.5" Inch Marine Audio Spekaers System and 400 Watt Amrine Audio Amplifire + Enrock Marine Antenna - Complete Marine Outdoor Stereo Package (White) Package Includes: 1 Stereo 6 X Speakers 1 X Amplifier Stereo: 240 Watts Peak Power (60W x 4 Channels) RMS Power Output: 18 Watts x 4 Channels, AM/FM Tuner (FM 18 presets/AM 12 presets) Detachable front panel, 1 Pair Preamp RCA Outputs, 5 Preset Equalizer Curves (pop/jazz/rock/beat/classic), 3.7 Wide LC Amp: 4 Channel Amp System, Dual MOSFET Power Supply, Marine Grade Construction, Waterproof Marine Rating IP-01, Dual Adjustable Input GAIN Level Controls, Dual High Level Speaker Input Connectors, Dual RCA (L/R) Input Connector Jacks, Gold-Plated Spe Technical Specs: Output Power: 40 Watt x 4 MAX, Amplifier Class: AB, Fuse Type: 20A, Input Gain Impedance Adjustment: 1 - 300mV, Frequency Response: 15 - 30kHz +/-3dB, Input Impedance: 10k Ohms (Low), 100 Ohm (High), Input Sensitivity: 250mV (Low), Antenna: Rubber marine antenna, 40 Long, Flexible mast, Adjustable base, Easy to mount