Operating Instruction Manual

1. The main characteristics

• Wear is comfortable, sound clear and natural, and the design is fashionable, streamlined.
• Small size.
• Uses Zinc-air batteries.
• Suitable for the person who suffers from medium and high frequency hearing loss.

2. Technical characteristics table of Nano CIC model

• Power: 1.4V, with the relative error between +5% and -10%.
• Environmental temperature: 5 ℃ -40 ℃, relative humidity: ≦ 80%, Atmospheric pressure: 86 Kpa-106 Kpa.

• MAX.SSPL (OSPL90): ≦ 118 + 3 dB
• High Frequency Average (OSPL90): 110 ± 4 dB
• Full-on acoustic gain (1600 Hz): 30 ± 5 dB
• Equivalent Input Noise Level: ≦ 28 dB
• Total Harmonic Distortion: ≦ 10%
• Frequency Response Range: 200-4000 Hz

3. Schematic diagram of function

1. See the position as shown in the figure

2. Volume Adjustment

Volume knob: Volume turns up when it is rotated clockwise, and turns down when counterclockwise. The factory settings are suitable for most people. If you think the volume is too high or low, please adjust the volume knob according to your need.

Adjusting Method: Micro-Sized screwdriver provided by us fits in the slot of the volume knob. Rotate softly and slowly.

VOLUME ADJUSTMENT

3. Choose the proper earplug

Use larger size earplug if your ear canal is large, otherwise, use smaller size earplug. This hearing aid supplies 4 different sized earplugs. Ensure that your earplug fits snugly, or it can cause Sound Feedback that leads to howling.

3. Whistling

It is also called Sound Feedback, which is a normal phenomenon occurring in the working hearing aid. It is more likely to occur if the hearing aid is set to higher volume. In the event of this, the following ways shall make it better:

1. Turn down the volume.
2. Choose a larger earplug to get a better fit,which will reduce the sound leak.
3. Turn up the volume, then pull your hand away from your ear (resource Sound Feedback). The howling should cease.

IV. General examination hearing aid in silence

1. Check whether the battery is low, change the battery to try it:
2. Check whether the battery is in the right place;
3. Whether the sound hole of the headphones is plugged. Use cleaning brush, to clean the sound hole of the ear plugs and the microphone hole.

V. [method of use accessories]

VI. Maintenance of the hearing aid

1. The hearing aid should be shut off when not in use;
2. The hearing aid should be stored in a dry place; when showering, hearing aid should be removed in order to avoid getting it wet;
3. Handle with care, avoiding being thrown, pressed and bumped
4. Avoid placing it near any magnetic objects.
5. The hearing aid should be placed where it can't be found by children easily.
6. Use a dry cloth or spray a special hearing aid solution on the dry cloth to clean the enclosure of the hearing aid. Please clean the earplug regularly.
7. Cleaning of the Hearing aid use the brush to clean the dust and dirt on the hearing aid.

Learn in more detail about "Hearing Aid Cleaning Tools".

V. Contraindications,notes,cautions and instructions]

1. Contraindications

1. Those suffering from acute otitis externa, eardrum inflammation, chronic suppurative otitis media (at the period of suppuration and infection, acute suppurative otitis media) and allergies to the materials of this product are forbidden to use this product.
2. It's not suitable for non-air conductance hearing patients and those suffering from severe hearing impairment.

2. Notices

1. Higher volume can impair the wearer. Suggestion: perform self-adjustments in a quiet environment during first time use. You may reset the volume after 2-3 months.
2. In case of hearing whistling, please select the earplug of appropriate size and make sure it is snug.  No air leakage is allowed.
3. The battery can overheat, start a fire and explosion if in an abnormal operation environment (High temperature, High humidity).
4. Protect against heat, humidity and shock. Don't clean it by cleanser, industrial alcohol or gasoline.