The siren is reasonably loud, funny animal effects and the microphone input works perfectly. Contrary to other reviews, works for me the microphone. You have to take close to your mouth and speak up, but for the price it works amazingly well. In addition, you can get a MP3 player via jack plug in and that's something! BUT PLEASE NOTE: All cables are in place, but ends in tinned ends. It contained no plugs etc. Anyone who wants to operate it in the mobile car, has yet to cable / connector / wire nuts etc. also order. Have the accessories simply taken from the car accessories a large workshop chain and everything fitted with a pocket knife. Works 1A and ensures much fun!