OS Assessments Charts
The Sights & Sounds of Education
Home >

Megaphones

When mass communication and crowd management situations call for a voice amplification device, our portable megaphones deliver. Built with rugged ABS plastic to withstand all types of weather, they range from 8 watts to 25 watts for superior sound and clarity from as far away as 1,250 feet. Teachers, coaches, and other faculty can depend on these megaphones for maximum voice amplification for emergencies, drills, sporting activities and other events. They are designed for comfort with a shoulder-strap, folding handle and also feature adjustable volume control, remote mic for recording a ten-second message with auto replay, voice and emergency alerts, as well as talk and siren capabilities.

Comparison Charts

View Comparison Charts

Take the califone.com website tour
How often is a smartphone or tablet used to support any type of group learning or presentations?
More than half of the time
About half of the time
About one-third of the time
About one-quarter of the time
Just starting to integrate and will be increasing use over time


View results

Proudly supporting with assessment-worthy headphones, earbuds & headsets.

Come learn about the latest in audio technology for use in assessments and for giveaways at the Troxell booth in Greenville, SC.

Come learn about the latest in audio technology for use in assessments at booth #902 in Tampa!

October 31st, 2014

2014 Catalog

OPEN Our New
Digital Catalog

Download the 2014 catalog

The United States Access Board, an independent federal agency whose primary mission is accessibility for people with disabilities, stated that acoustical performance is an important consideration in the design of classrooms. As many classrooms were built during a time when acoustics was not a significant concern, it is critical for administrators to consider the affects poor acoustics may have on student learning. Research shows that ambient noise and reverberation normally not noticed by adults can have a negative affect on learning environments for young children, as they require optimal conditions for listening and comprehension....[more]


I sought out the Performer Plus for its variable speed playback feature for the CD and cassette, which we use for dance classes. I also use it as a PA system because it has enough power to be clearly heard during gym classes. The external microphone jack is a good feature that you don’t find on many......[more]

The 3060AVS stereo headphones allow our 6th through 8th grade students to listen to multimedia on the computers....[more]

We are offering unprecedented bargains on limited quantities of these discontinued items. Available on a first come, first served basis...[view]