The 300-IP Paging Horn can be used for standard one-way SIP endpoint paging, multicast paging or background music. The 300-IP features a high efficiency 6W class D amplifier capable of driving the horn at up to 113dB SPL at 1 mm. The 300-IP-EWP shares all of the features of the 300-IP in addition to Enhanced Weather Protection (EWP) for outdoor installations where the unit is exposed to precipitation or condensation. EWP products are designed to meet IP66 standards and may feature foam rubber gaskets, sealed connections, gel-filled butt connectors, as well as potted circuit boards with internally sealed, field-adjustable trim pots and DIP switches for easy on-site programming.