Product Parameters / Specification :

1.Product size:43x15x10 mm

2.Weight:4 g

3.Max. saturation sound pressure level(SSPL):130dB±4dB

4.Full on Acoustic Gain:F=1600Hz,45±5dB

5.Total Harmonic Distortion(THD):F>1000H 15% F<1000H 10%

6.Frequency Response:450-3500 Hz

7.Equivalent Input Noise:32 dB

8.Battery: Rechargeable

9.Battery Current Drain:4 mA

10.Estimated Battery Life:48 Hours

11.Rated Voltage:D.C 1.5V

1. You can listen to high-end concerts and improve the quality of life;
2. Do not worry about to hearing others no longer, and get along with your family more harmoniously;
3. Can watch TV, improve physiology and physical health;
4. Improve social skills;
5. Prevent Alzheimers Disease.

Packing list:

Packing list:

Host * 1

Silicone earplugs * 4

Cleaning brush * 1

USB * 1

Manual * 1

Note:

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;