Performs from any place Stand it up, lay it back again, dangle it upside down – you’ll constantly get the very best seem. PositionIQ technological know-how instantly senses the speaker’s orientation and optimises its audio to deliver more oomph to any moment. EN54-23 is a eu Common for visual alarm https://www.firesense.co.uk/type/conventional-fire-system/conventional-sounders-vids-vads/