★The main features of the product:

1.Patented Technology: Air Duct

2.Max Sound Output: 125dB ± 4dB

3.Sound Gain:38dB ± 5dB

4.Harmonic Wave Distortion: ≤5%

5.Frequency Range: 450~5000 hz

6.Equivalent Input Noise: ≤28 dB

7. Adjustable Volume Wheel，1-4 volume

8.Battery: Built-in High quality Lithium battery

9. Rechargeable battery duration max. 60 hours，Short Full charging time 4 hours (First charging up to 6 hours)

10.The rechargeable battery cycle time up to 500 times without decline

11.Working Voltage: D.C.3.7V

12.2 Year warranty

★Product packaging:

1 * Hearing aid + 4 * Earplug + 1 * Charger + 1 * USB charging cable + 1 * Instruction manual + 1 * Cleaning brush + 1 * Packing box

★How to wear:

1. Select the earplugs of the appropriate size and connect them to the headset connector.
2. When wearing, slowly insert the headset head into the ear canal, so that the earplugs and ears are fully fitted. This can avoid noise caused by leakage.
3. When using the volume from low to high, to avoid sudden excessive volume caused by hearing discomfort.   

★Note:

1. When cleaning the hearing aid, please use a dry cloth and a small brush to clean the hearing aid. Do not use water or other liquids.
2. When you are not using or sleeping, please turn off the power.
3. When the sound of the earphone becomes small and the goods cannot work normally, the battery may be low. Please charge it in time.
4. During the charging process, the charging indicator of the hearing aid will light up, and when fully charged, the indicator will show green.
5. It needs to be charged for more than 4 hours. After the battery is completely used for the first time, it can be fully used. Repeat the charging operation 3 times, can make the battery reach the best use state.

★About transportation:

1.All products are in standard packaging.

2.Before shipping, we will carefully check your order and packaging to ensure that everything is intact.

3.During long-term transportation, the packaging may be slightly damaged, but it will not affect the effect of our products. If the product is damaged, please contact us in time, we will solve it for you as soon as possible.