Car Speaker with Amplifier Set - 4 Kicker 43CSC674 6-3/4 Inch 2-Way Car Stereo Speakers + Enrock EKMB500ABT 400W 4-Channel Bluetooth Car/Marine Amplifier PACKAGE KIT INCLUDES: 2 Sets (Total 4) Kicker 43CS674 Black Car Coaxial Audio Stereo Speakers = 1 Enrock EKMB500ABT Car Stereo Amplifier With 400 Watts And 4 Channels. CAR STEREO SPEAKER: Kicker's 43CSC674 speaker set provides low-end from a tough 6-3/4" polypropylene woofer, with a polyester foam surround that will stay strong for years to come. The 1/2" PEI balanced dome tweeter takes care of the vocal and instrumental details that'll really bring your music to life. These speakers sound great powered by a factory radio or an aftermarket car stereo, and they'll really rock when connected to an external amplifier. Grilles are included. CAR AMPLIFIER SYSTEM: The Enrock Elite Series Bluetooth Amps marine grade waterproof construction Provides high-power efficiency rating performance and reliability - These multi-channel amplifiers are perfect for the back yard, boat or even by the pool - Enjoy versatile waterproof performance and next level sound amplification with the Enrock Elite Series Stereo Amps. %100 SATISFACTION GUARANTEE: Buy With Confidence With Our 30 Money Back Hassle Free Guarantee And A 1 Year Warranty