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The Titanium HPK-1000 by Califone are a pair of closed-back circumaural headphones that feature 40mm drivers and a frequency range of 20Hz-20kHz. The headphone's are washable and can be completely immersed in soap and water after its cord has been detached. The detachable cord has a USB 2.0 connection that is Mac and PC compatible. The HPK-1000 are ideal for public environments where headphones are frequently worn and handled like classrooms, businesses, libraries, churches and government facilities. Designed to withstand heavy use, padded ear-cups and protected slotted baffles guard against perforation of speakers. Ear-cups cover and seal the ear for passive ambient noise rejection to block-out loud distractions. Located on the in-line cord, an LED light turns green when the USB plug is connected with a computer and red when the Sentinel switch is turned on for a fixed volume level. Sentinel technology is built in for appropriate volume play-back listening levels. Fixed volume level is to ensure safe listening practices.
First headphone of its kind with the ability to be washed thoroughly (after the cord is disconnected) without having to worry about damaging sensitive electronic equipment.
Supportive ear-cushions and comfort strap for longer wearability.
Adjustable headstrap rugged enough for daily classroom use.
Rugged built ABS plastic construction and thick cord.
To conserve energy, headphones go into automatic sleep mode after 2 minutes of non-use.
Sentinel Technology built into the cord, for controlled volume playback level restricted to the ASHA-recommended maximum of 85 decibels.