
1. Adjustable headband comfortable for extended wear
2. Specifically sized for young students
3. Ideal for beginning computer classes and story-time uses
4. Permanently attached with reinforced “strain” connection 
resists accidental pull out
5. 6 foot straight cord with 3.5mm plug set at right angle 
reduces accidental pull-out
6. Ambient noise-reducing earcup lowers outside noise so 
volume does not need to be as high, as recommended by 
audiologists for hearing safety
7. Rugged ABS plastic earcups resist breakage in high-use 
situations
8. Replaceable leatherette ear cushions
• Volume control set by the teacher for student protection
• IBM, iMac and Mac compatible
• One year warranty for school use - unlike headphones 
purchased at consumer electronics stores whose 
warranties would be voided if used in schools.
Listening First Stereo Headphones
Model 2800-RD
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This Listening First Stereo Headphone is 
specifically built for young students with 
safety as its first concern. Rugged ABS 
plastic earcups withstand daily use with 
external volume control set by the 
teacher for student safety. This headphone is ideal for story-time, library and 
computer uses.
“Project Intercept"
Please contact us immediately if you experience any issues 
with your Listening First Headphones. Our “Project Intercept" 
customer service program will quickly repair or replace items 
under warranty. Simply contact us via phone or email 
rilane@califone.com.
Visit our website at www.califone.com to learn more about the 
complete line of Califone®audio enhancing and visual technology products including: Wired and Wireless public address 
systems and lecterns, wireless microphones, headphones & 
headsets, group listening centers, multimedia players and 
computer peripheral products.
We are proud of helping teachers enhance student 
understanding and ach ievements since 1947, with your 
satisfaction as our first pri ority.
This Listening First headphone carries a one year warranty with 
service support available through authorized dealers nationwide.
Distributed by:
Specifications
Speaker
Cone 30mm Mylar 
Magnet Ferrite 
Impedance 25 Ohms each side+/-15% 
Frequency Response 20 - 20KHz 
SPL 110 db +/- 3db 
R/L output difference 3 db 
Rating Input min 20mw, max 30mw 
Distortion 5%
Transducers 40mm Mylar dome driver unit 
Sensitivity 98dB ± 3dB at 1kHz 
Volume Control None for student protection 
Plug Right angle 3.5mm mini plug 
Cord 6 foot, straight cord
Headband Adjustable
Earcups Noise-reducing, ABS plastic for durability
Ear Cushions Foam-filled leatherette 
Weight 9.6 ounces, shipping weight 1 lb. 
Color Blue
Warranty 1 year for use in school, business,
church and government facilities
Califone®International Inc. 800-722-0500
www.califone.com
2800-RD, March 2007