Califone 2800-BL Listening First Stereo Headphones, Blue

Califone 2800-BL Listening First Stereo Headphones, Blue, Adjustable Headband Comfortable for Extended Wear, Specifically Sized for Young Students, Replaceable Leatherette Ear CushionsThis Listening First stereo headphone is specifically built for young students with safety as its first concern. Rugged ABS plastic earcups withstand daily use with slotted earcup baffles to prevent accidental damage from prying fingers or foreign objects. The volume control is set from the audio source (not on the headphone or cord) for student safety. It is ideal for classroom story-time, library, and computer uses. Key Features Adjustable headband comfortable for extended wear Specifically sized for young students Ideal for beginning computer classes and story-time uses Permanently attached with reinforced "strain" connection resists accidental pull out Lengthy 5'-6" straight cord with 3.5 mm plug set at right angle reduces accidental pull-out Around-ear ambient noise-reducing earcups deliver maximum protection against exterior sounds (without added electronic circuitry and expense).

This reduces the need to increase the volume (protecting the ears) and helps keep students on task. Rugged ABS plastic earcups resist breakage in high-use situations Replaceable leatherette ear cushions iOS, Windows, Android compatibleSpecifications
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
Plug: Right angle 3.5 mm mini plug
Ear Cushions: Foam-filled leatherette
Weight: 9.6 ounces, shipping weight 1 lb.