Industrial Covert Unlimited is in its 20th year of operation. CU1.COM has been up since mid 1999. Great security & CCTV products and people who answer the phone!
Check this out!
ETS HS5 5" Indoor Horn Speaker W/ 10W Max Output for Audio Surveillance & PA
The ETS HS5 5" horn speaker is for use with remote monitoring two-way audio surveillance systems or public address systems. This speaker is made to be used indoors, has a 10W max output, and it uses a 70V transformer for your power needs.
So if you're looking for a speaker system to attach to your PA system or your audio surveillance kit; then the HS5 from ETS just might do the trick for you.