Matters needing attention, warning suggestive explanation

    * If you hear a noise Please check whether the size of the earplugs (silicone) is suitable, yes
      No tight plug, choose the right ear plug and plug tight, do not leak air.
    * Do not use for a long time, please take out the battery, so as not to corrode the battery hearing AIDS
      Parts.
    * Please clean the earplugs or earmuffs regularly to ensure the normal use of hearing AIDS.
    * Anti - shock, anti - fall, anti - moisture, anti - high temperature.
    * The selection of hearing AIDS to pass the fitting division.

Label. Label interpretation
    N--- \"on\" switch of power supply of hearing aid
    0-- -- \"off\" the power switch of the hearing aid
    \"+\" --- battery positive pole ; \"--\" -- battery cathode
    \"1, 2, 3, 4\" -- the volume, \"1\" is very small, \"4\" is very large. 

Installation instructions 
    1. Please insert the earplug into the crank and connect the other end of the crank to the catheter (see figure)
        And connect the other end of the catheter to the ear hook (see figure 1).
    2. Battery installation: please gently open the battery compartment cover and press positive or negative for an A675 battery
       Put the pole direction into the battery compartment (see figure 3), then close the battery compartment. 

Directions for use 
    1. Hook the ear hook on the back of the ear, then put the earplug into the ear and try to close it.
       Unplug the n-o switch to \"N\" and adjust the volume knob to clear sound
       Can.
    2. When not in use, set the n-0 switch to \"0\".

Product maintenance 
    Use dry cloth or special hearing aid cleaner spray on dry cloth to clean the hearing aid shell.
    The hearing aid does not ring:
       * Whether the switch is on;
       * Whether the battery is installed in the correct way;
       * Whether the battery has electricity;
       * Whether the battery compartment is closed;
       * Whether the earplugs are blocked by sundries;
 * Whether the headset is broken;
 * Whether the wire is broken;
    Hearing AIDS sound weak or fuzzy:
 * Insufficient battery voltage;
 * Headset malfunction;
    The battery life is too short:
 * When not in use, the battery is still in the hearing aid, and the switch is not \"0\";
 * After the battery is unpacked, it is placed together with metal objects or exposed to air for a long time.

Storage method 
    1. Store in dry and ventilated place with relative humidity less than 80% and no corrosive gas.
    2. When not in use for a long time, do not forget to take the battery out of the battery compartment, and
       Sound amplifier at relative humidity not more than 80%, no corrosive gas, dry through

Please read the product manual carefully or purchase and use it under the guidance of the medical staff