GALLS ST 160 STREET THUNDER SIREN WITH P/A, MIC, WIRING HARNESS. SIREN WORKED PERFECTLY WHEN REMOVED AFTER RETIREMENT. SPEAKER NOT INCLUDED. MANUAL BUTTON IS PROGRAMMABLE TO DIFFERENT TASKS/SOUNDS. THIS DOES NOT INCLUDE THE OWNER/OPERATOR BOOKLET AS IT HAS LONG SINCE GONE MISSING. DIRECTIONS, PROGRAMMING, CAN BE OBTAINED VIA INTERNET. THIS IS A FULL 100w SIREN AND WAS VERY EFFECTIVE AT CLEARING TRAFFIC.