Articles tagged ‘speakers’
The City of London wired for sound
By Chris | May 16th, 2007 |
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The City of London and the City of London Police held a joint launch today for a new public warning system in London’s financial district, the Square Mile, as the City of London is known.
The system consists of loudspeakers that can be heard clearly 150 metres away fixed to existing mounted poles for CCTV cameras [...]
