Coolbe: This product is a medical device which must be used only as intended and in accordance with the instructions for use.
This device is not a substitute for professional medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before use if in doubt. The seller/distributor is not liable for any damages arising from misuse, unauthorized modification, or use beyond stated indications.
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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.
