These Water Proof LOUD Speakers now include a 100 Watt low Voltage High Power Pro. Amplifier\ This is one of the best amplifiers out there. Amp is guaranteed to BLAST the speakers to the max! This tiny amplifier measures only 2.75" x 3.5" x 1.75 (WxLxH) The weather proof Our Water proof LOUD speakers measure are 4 1/2" X 4" x 3.5 The front side of the amp provides the INPUT and has both a 1/8" standard earphone jack and standard RCA Jacks. Now you can hook up an additional audio device! The filter, volume control and green power indicator light are all up front. The backside of the amp provides the output with standard RCA Jacks. The power switch and 12 Volt power input are located on the backside as well. P ower wire and audioSpecifications of the loudspeakers:

• Each speaker is 3 inches
• Working Voltage 10-16V DC
• VoiceCoil Impedance: 4
• Resonc Frequency: 165HZ
• Effective Frequency Range: Fo-12kHZ
• Puiput Sound Pressure Level: 88dB
• Rated Input Power: 15W
• Max Input Power: 30W
• Distortion: <= 5% Specifications of the amplifier:
  • Working Voltage 10-16V DC
  • MAX power @ 4 50WX2
  • RMS power @4 25WX2
  • THD 50dB
  • Channel separation >50dB
  • Frequency response 20Hz-20kHz
  • Sensitivity 150mv
  • N.W. 1.5kg
  • G.W. 1.7kg
  • Fuse rating 5A

 wires are included!!

the system is on my harley,at high speed the sound is so clear my wife can here it on the back.plug,your ipod or mp3 player with all your tunes and your good to go.well worth the price.