Specifications

1. Max Sound Output: ≤130dB+3dB 

 2. Max Sound Gain: 51dB ± 5dB 

 3. Average Sound Gain: 37dB±5dB

 4. Harmonic Wave Distortion: ≤5% 

 5. Frequency Range: 400Hz~5500Hz 

 6. Input Noise: ≤29dB±3dB

 7. Battery: Rechargeable polymer lithium ion

8. Rated Current: ≤5mA 

 9. Working Voltage: DC 3.7V

The USB port connect to the 5V charging base adapter, the blue indicator light on means (on charging), and the green indicator light is fully charged. 

【Adjustable】 - 3 different frequency modes and each for 5 types of volume for your choices to ensure that you can hear clear sound in different volume environments.  -  Automatic memory will keep the volume and program last time you set it.  Please use the correct wearing method to ensure that the hearing closely matches the ear canal to avoid sound feedback and howling. It is an ideal hearing companion for people with hearing impairment who Running, Jogging, Hiking, Yoga, Talking, or watching TV. Accessories

1. Hearing aid 1pc 

2. USB 1pc

3. Protecting case 1pc

4. Brush 1pc

5. Ear domes 3pcs

6. Sound tube 1pc

7. Manual 1pc

Standard set of EN-T201A rechargeable hearing aid

1. Product size:3.48x1.7x0.85cm

2. Product N.W.: 4g

3. Product G.W.: 179g

4. Color box size: 13.7x9.8x4.5cm

5. Carton size: 36x36x36cm

6. Quantity per carton: 56 boxes/CTN

EN-IN102 In The Ear Hearing Aid Operation Manual