This heavy-duty headset lives up to the demand under extremely high-noise environment in air-piloting and car-racing. It is best used in manufactory plants as well.
Built of Acrylonitrile Butadiene Styrene (ABS), the dome of the speaker is hard, durable and heat-resistant. Layers of sponge filter ensure high passive noise reduction level (NRR) of 24dB, which means a reduction of the amount of background noise reaching your ears. The three-layered thick earpad create a seal around each of your ear from the high noise environment.
The speakers are connected by a metal frame which crosses behind your head. Though the sturdy material of the speakers are a bit weighty, the Velcro taped headstraps with which you wear the headset relieves much of the weight and provides adjustable, comfortable wearing experience.
The electret microphone offers consistent and accurate transmission. It is connected to the headset with a strong metal frame which helps adjusting it to the most suitable position while not getting loose.
Here are some of the exceptional features of the heavy-duty headset:
| Technical Specifications of Speakers |
| Passive Noise Reduction Rating | 24dB |
| Impedance | 8Ω +/- 15% at 1.0v, 800Hz |
| Resonant Frequency | 200Hz +/- 20% (without baffle) |
| Output SPL | 99dB +/- 3dB (at 1W Zxis Calculated) |
| Frequency Response | 15kHz |
| Rated Frequency Range | 15kHz |
| Rated Power Input | 0.5W |
| Max Power Input | 0.6W |
| Distortion | 5% Max (rated power input 1000Hz) |
| Load test | Noise 0.5W in 24 hours |
| Heat test: | 50+/-2°C and 20-25% R.H. in 5 hours |
| Humidity test | 40+/-2°C and 90-95% R.H. in 5 hours |
| Cold test | -25 °C in 16 hours |
| Technical Specifications of Microphone: |
| Sensitivity | -43dB (f=1kHz, 0dB=1V/Par VS=4.5V, R=1.0kΩ) |
| Output Impedance | 1.0 kΩ (f=1KHz); |
| Current Consumption | 500μA (VS=4.5V, RL=1.0KΩ) |
| Signal to Noise Ratio | 40dB; |
| Decreasing Voltage | -3dB (VS=3.0V to 1.5V) |
| Soldering heat shock | +/-3dB (350+/-5°C in 3 minutes) |
| Storage temperature range | -40°C~+80°C; |
| Operation temperature range | -40°C~+70°C; |
| High temperature test: | 55+/-2°C in 2 hours; |
| Humidity test | 40+/-2°C and 93+2/-3% R.H. in 48 hours |
| Low temperature test | -20+/-3°C; |
| Vibration test | frequency range=10~30~10Hz, amplitude=0.55mm; time for each period=3 min.; total time=30min; frequency range=30~55~30Hz, amplitude=0.15mm; time for each period=3 min.; total time=30min. |
Compatible two-way radio models:
| | 1 x Noise-reduction Headset ( Colour BLACK) 1 x Radio connect cable with PTT switch . 1 x For 2 pin plug ( fit for JINGTONG) |
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- JINGTONG handheld Radio : JT-208 JT-308 JT-2118 JT-3118
Kington handheld Radio: KG-2118 KG-3118 KG-208 KG-308
Kensung : KG-6228 KG-5228 KG-2118 KG-3118 KG-528 KG-628 KG-3288 KG-2288
Quansheng : TG-5A
This product was added to our catalog on Saturday 20 September, 2008.
