Nano hearing aids are affordable, over-the-counter solutions intended for individuals with mild to moderate hearing loss. These devices offer sound amplification without requiring a prescription or an audiogram. Successfully integrating these instruments into daily life depends on proper initial setup and consistent maintenance. This guide provides a step-by-step approach to preparing, fitting, operating, and caring for the hearing aids.
Preparing the Device for First Use
The first step involves activating the power source, which differs depending on whether the model is rechargeable or uses disposable batteries.
For rechargeable models, place the devices into their charging case after powering them off. They will magnetically click into the charging wells, and an indicator light (often red or orange) will signal active charging. A full charge generally takes four to seven hours, and the light changes to green or blue when the battery is replenished.
If the hearing aids utilize zinc-air disposable batteries, a specific activation process is required. These batteries are activated by oxygen, released when the protective sticker is peeled off the flat, positive side. Once the sticker is removed, allow the battery to sit exposed to the air for approximately five minutes to initiate the chemical reaction. The battery is then placed into the compartment with the positive, flat side facing upward before the door is securely closed.
Achieving the Right Fit and Comfort
A secure and comfortable physical fit is necessary for sound quality and preventing feedback. Feedback is the high-pitched whistling sound that occurs when amplified sound leaks out of the ear canal and is picked up by the microphone. To minimize this, select the correct dome or eartip size from the provided assortment, as the dome must create an effective seal within the ear canal.
The device should be inserted gently yet swiftly to avoid immediate feedback upon activation. For models worn behind the ear, position the thin tube or wire over the top of the ear, and guide the dome into the ear canal. The device should sit snugly, ensuring the microphone or sound inlet is not obstructed by the ear canal wall. Slight discomfort or an unfamiliar sensation is common during the first few days, but consistent adjustment allows the ear to adapt.
Daily Operation and Sound Management
Once the hearing aid is properly seated, power the device on by pressing and holding a multi-function button or rocker switch for about four seconds. For battery-operated models, closing the battery door typically serves as the power-on function. The hearing aid usually signals activation with a series of beeps, indicating it is active and set to the last used listening program.
Sound output is managed through the volume control, which may be a small wheel or a rocker switch. Volume adjustments should be made incrementally, cycling up through the available levels (which can range from six to nine settings) with a quick press or turn. Many models also feature multiple listening programs for different acoustic environments, such as quiet conversation or noisy settings. Cycle through these programs by pressing the multi-function button; the device provides beeps to confirm the selection.
Cleaning and Long-Term Care
Consistent maintenance prevents the most common causes of device malfunction: moisture and earwax buildup. A simple daily cleaning routine involves wiping the entire casing with a soft, dry cloth to remove surface oils and debris. Avoid using water, alcohol, or other chemical wipes, as these can damage the sensitive internal electronic components.
More detailed cleaning should focus on the sound outlet and microphone ports, which are susceptible to wax blockage. Use the small brush provided to gently sweep away any visible earwax or dirt from these openings. If sound becomes muffled, remove the eartip or dome, and replace the wax guard at the tip using the specialized stick tool to ensure a clear pathway for sound. When not in use, power off the hearing aids and store them in a dry environment. Rechargeable models should be placed back in their charging case. Users of disposable battery models should open the compartment door slightly to preserve battery life and allow moisture to evaporate.