The Sound AlertTM jackbox visibly signals to students and teachers when the jackbox volume is louder than the American
Speech-Language-Hearing Association's recommended 85dB level.
When the volume that's played through the jackbox exceeds 85 decibels, a bright red warning light turns on, alerting both the teacher and students about an unsafe sound level requiring adjustment. Having an appropriate volume level pointed out will help teachers and students learn safe and lifelong listening practices, beginning in the classroom, learning center, and school library.
The durable monaural Sound Alert jackbox is ideal for listening centers, ELL and ELD and other language learning activities. It can also be used as a traditional jackbox without charging the battery, but the warning LED feature will not operate. The Sound Alert jackbox conserves its power by shutting off when no audio signal is present for 60 seconds and will power on automatically when there is an audio signal present.
“For connecting multiple headphones to computers, stereos, CD players. All you have to do is to plug the earphone into the jackbox and then plug the jackbox into your audio source. Volume controls are included on the jackbox. This device comes in handy for several students playing a video game or for a group of students working on a project on one computer.” The Gadget Girls Media Review powertolearn.com, 9/25/03
A: No. The SoundAlert™ jackbox is a monaural jackbox to be used with monaural headphones while the SoundAlert headphone is a stereo headphone to be used with stereo multimedia players and computers.
A: The monaural SoundAlert™ jackbox comes with dual plugs, one is ¼” and the other is 3.5mm so that it can be plugged into a variety of multimedia players.
A: No, the SoundAlert™ monaural jackbox and stereo headphones don’t have to be used together as they both have a feature that signals when the volume level exceeds 85dB. That feature will still work on the monaural jackbox if it is used with a regular monaural headphone and the feature on the SoundAlert stereo headphone will work when used with a stereo multimedia player or regular stereo jackbox.
A: No, there isn’t an On/Off switch on the Sound Alert Jackbox. The Sound Alert Jackbox conserves its power by shutting off when no audio signal is present for 60 seconds and will power on automatically when there is an audio signal present.
A: The Sound Alert Jackbox uses its included AC adapter for the noise reducing feature. It can operate as a “standard” jackbox without the noise reducing feature, without its power supply.
A: A plug connects the jackbox to the media source such as a media player. A jack is the receptacle for the plugs (ie what you connect your headphone to the jackbox with).
A: Yes. The Sound Alert™ jackbox has 10 headphone jacks and one volume control knob on the jackbox controls the volume for all headphones connected to the jackbox.
