Coolbe: The information about the product is provided by the seller. Notwithstanding any of this information, the product is not intended for diagnosis, cure, mitigation, treatment or prevention of any disease, is not a drug or a medical device, and should not be used for any medical purposes. Please consult a medical specialist.
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Product Features:
1.The product looks like a BT headset, which can protect your privacy. You don't have to worry about discrimination anymore.
2.Fine quality material, safe and non-toxic.
3.Mini, lightweight and invisible, comfortable for long time wearing without pain.
4. Intelligent and high quality. Advanced digital signal processing technology can intelligently reduce environmental noise and provide clear, high-quality natural sound.
5.Full digital circuitry, low power consumption, adaptive noise reduction, and can prevents howling.
6.Easy to charge. After charging for 2 hours, the item can work for more than 12 hours.
7.Rechargeable design;the built-in power bank can be charged more than 6 times.
8.Easy to operate and use.
Product Parameter:
1.Maximum OSPL90:≤117dB±3dB
2.High Frequency Average OSPL90:109dB±4dB
3.Average Gain:25dB±5dB
4.Frequency Response Range:400Hz-4500Hz
5.Equivalent Input Noise Sound Level:≤29dB+3
6.Total Harmonic Distortion:≤7%
7.Related Power Supply:≤6mA
8.Adaptation range: mild - severe
9.Working current: 1.4mA
10.Warranty period: 1 year (note: non-human damage.)
Prompt
1.Adjust volume to the minimum before wearing;
2.Choose an earplug of slightly bigger size to avoid whistler;
3.Increase volume gradually to avoid sudden increase in sound;
4.If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage;
5.Keep the ear plug clean;6.Remove the battery if you don't use it for long time.
