Ship Horn Sound For Your Boat or Ship – Horn sounds 1 prolonged blast indicating the ship is underway in reduced visibility in accordance to Inland / International Rule 35 - Excellent quality. - Just install this product (only one) anywhere in the room as furniture and that's it! Trigger words are any one of the following normal conversation words: “HORN” – “NO” – “GOOD” – “GREAT” – “YEAH” – “OK” – “THANKS” – “COOL” – “BACK” – “WHAT” – “FINE”