B-228 Hearing Aid
Product Highlights
- Max sound output: 120dB
- Sound gain: ≥30dB
- Total harmonic wave distortion: <1000Hz≤10%
- Frequency range: 250-3800Hz
- Input noise: ≤50dB
- Voltage: DC1.5V
- Current: ≤4mA
- Color: As pictures
- Battery Installation: Gently open the batterycompartment cover at the back of the device.
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7 Days Returns/Exchange ( Change of mind is not applicable )
No Warranty
B-228 Hearing Aid
Maximum audio output is 120 db. 30-dB sound gain. Distortion of the whole harmonic wave: 10% at 1000 Hz. Range of frequencies: 250-3800Hz. 50 dB of input noise. DC1.5V is the voltage. 4mA is the current. Color: As seen in images. Battery Installation Open the device's battery compartment cover gently from the back. Close the battery compartment after inserting the AG13/LR44 battery in the proper direction. One little hearing aid, two AG3 button cells, an instruction manual, a case, and two units of earplugs in various sizes are included in the package.
HOW TO USE B-228 Hearing Aid
Step 1: Set the invisible hearing aid switch to the ON position Step 2: Ensure the volume slider is at the lowest setting (lowest level)
Step 3: Insert the in-ear invisible hearing aid.
Step 4: Increase the volume up till you hear something.
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