Features
- Califone Sound Alert Stereo Headphone has adjustable headband that fits students of all sizes
- Made of rugged polypropylene headstrap and ABS plastic earcups
- Red LED will turn on when the audio level exceeds 85dB
- Orange LED will light when recharging and turns green once completed and the system is on and operational
- Permanently attached coiled cord with reinforced connection resists accidental pull out for safety, right angle 3.5mm plug to minimize accidental pull out
- Slotted baffles prevent access to speaker, avoids accidental puncturing of the speaker cone
- Noise-reducing earcups lower ambient noise so volume does not need to be as high, as recommended by audiologists for hearing safety
- Replaceable, cleanable ear cushions for multiple users
- Includes AC adapter and charging lead (not shown)
Specification
| Particulars | Specification |
| Mini Stereo Jackbox 1114 Series |
| Number of Listening Positions | 4 |
| Contact Points | Silver-plated for better connection and are moisture resistant to prevent corrosion |
| Housing | Durable ABS plastic |
| Volume Control | Available for each headphone |
| Other | Four 1/4" skid-resistant rubber pads limit accidental movement of the jackbox |
| Dimensions | 1.5"H x 3.25"L x 3.25"D |
| Color | Blue, red, yellow |
| Listening First Headphones 2800 Series |
| Plug | Right angle 3.5mm mini plug |
| Cord | 5.5 foot, straight cord |
| Headband and Earcups | ABS plastic for durability |
| Earcups | Noise-reducing, adjustable |
| Ear Cushions | Foam-filled leatherette |
| General |
| Combined Ship Weight | 3lb |
| Safety | Built for use in schools, daycare and early childhood centers |
| Particulars | Specifications |
| Listening Stations | 10 with 1/4" headphone connections |
| LED Lights | Redwill turn on whenever the audio level exceeds 85dB SPL +/- 3dB Green- the jackbox is on and functioning |
| Volume Control | Single control for all attached headphones |
| Cord | Permanently attached 6 foot with 1/4" & 3.5mm mini plugs |
| Contact Points | Silver-plated for better connection and are moisture resistant to prevent corrosion |
| Housing | Rugged ABS plastic for durability |
| Dimensions | 2"H X 4.25"L X 4.25"D |
| Weight | 12oz, shipping weight 1lb |
| Particulars | Specification |
| LED lights | Red will turn on whenever the audio level exceeds 85dB SPL +/- 3dB |
| Orange indicates the battery is recharging and turns green when fully recharged |
| Green - the system is on and functioning |
| Speaker |
| Size | 40mm diameter (1.6") |
| Diaphragm | Mylar |
| Magnet | Ferrite |
| Impedance | 600 Ohms each side |
| Frequency Response | 40Hz to 18kHz |
| Sound Pressure Level | 102db +/- 3dB |
| Power Capacity | 20 milliwatts RMS, 150 milliwatts peak |
| Distortion | < 5% |
| Battery |
| Type | Li-Ion (included) |
| Single charge usage under continuous operation | Approximately 36 hours |
| Idle operation time | Approximately 500 hours |
| Charging time | 4 hours |
| General |
| Volume Control | Continuously variable |
| Cord | Permanently attached 6ft coiled cord |
| Plug | Nickel plated 3.5mm with detachable 1/4" adapter, right angle with to diminish accidental pull out |
| Headband and Ear Pad | PVC (washable) |
| Headphone Cup | Noise-reducing, ABS plastic for durability |
| Weight | 10oz, shipping weight 1lb |
| Particular | Dimensions |
| Cone | 30mm Mylar |
| Magnet | Ferrite |
| Impedance | 25 Ohms each side+/-15% |
| Frequency Response | 20Â to 20KHz |
| SPL | 110db +/- 3db |
| R/L output difference | 3db |
| Rating Input | Minimum: 20mw
Maximum: 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 | 5.5 feet, straight cord |
| Headband | Adjustable |
| Earcups | Noise-reducing, ABS plastic for durability |
| Ear Cushions | Foam-filled leatherette |
| Weight | 9.6oz, Shipping weight 1lb |
| Particular | Dimensions |
| Cone | 30mm Mylar |
| Magnet | Ferrite |
| Impedance | 25 Ohms each side+/-15% |
| Frequency Response | 20Â to 20KHz |
| SPL | 110db +/- 3db |
| R/L output difference | 3db |
| Rating Input | Minimum: 20mw
Maximm: 30mw |
| Distortion | 5% |
| Transducers | 40mm Mylar dome driver unit |
| Sensitivity | 98dB ± 3dB at 1kHz |
| Volume Control | Yes |
| 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 |
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Warranty
2 Year warranty for school, business, church and government uses
