This product does not include an amplifier and is just a controller. You will need a CEXAMP if you want to run speakers.  Introducing Core-S, the NEWEST addition to Whelen’s industry-leading Core® family of control systems! Core-S is a true, one-box solution engineered for performance, designed for vast configuration, and built to scale with your needs. An all-new space-saving design allows for installation in tight spaces like in a console or under a dash. And installation has never been easier with connector placement specifically designed for installation in hard-to-reach areas. Core-S features siren, input/output, and control functionality in one compact box along with an integrated control head. This is a single unit 200 watt siren with Integrated 3 section control head and 8 push-buttons, 4-position slide switch with a 7-position rotary knob, manual, airhorn plus 3 traffic advisor™ switches and microphone with extension cable. Features Vehicle-to-vehicle sync Dynamic variable Intensity light patterns Seamlessly integrates with the Whelen command software Remote firmware updates through USB-C with Whelen Command or over-the-air with the Whelen cloud platform Powered by WeCanX  11 total inputs 16 Total outlets 5-year warranty Products: CenCom Core Remote Siren (C399S): This is a watt amplifier control module, flashing outlets, includes 3 CAN ports and controls up to 99 devices/ remote modules, control head and other modules purchased separately. 12 VDC CenCom Core Remote Howler (C399SH): This is a 100 watt amplifier control module with 100 watt howler, flashing outputs, includes 3 CAN ports and controls up to 99 devices/remote modules, control head and other modules purchased separately. Single howler speaker and mounting bracket purchased separately, 12 VDC CenCom Siren Knob & Slide (C399S6): This is a single unit 200 watt siren with Integrated 3 section control head and 8 push-buttons, 4-position slide switch with a 7-position rotary knob, manual, airhorn plus 3 traffic advisor™ switches and microphone with extension cable. CenCom Core Howler Knob & Slide (C399S6H): This is a single unit 100 watt siren and 100 watt howler with Integrated 3 section control head and 8 push-buttons,4-position slide switch with a 7-position rotary knob. manual, airhorn plus 3 traffic advisor™ switches and microphone with extension cable, single howler mounting bracket purchased separately, 12VDC. CenCom Core Siren 21 Button (C399S7): This is a single unit 200 watt siren with Integrated 3 section control head and 21 push-buttons, 4-position slide switch, microphone with extension cable. CenCom Core Howler 21 Button (C399S7H): This is single unit 100 watt siren and 100 watt howler with Integrated 3 section control head and 21 push-buttons,4-position slide switch, microphone with extension cable, single howler mounting bracket purchased separately, 12VDC.