







Refurbished: NANO Sigma Plus Bluetooth OTC Hearing Aids
• FDA Registered Hearing Aids (Pair)
• Nearly invisible & extremely discreet
• Phone app control for quick & easy adjustments
• Four (4) selectable programs for various environments
• Rechargeable Technology: Up to 14 hours per charge
• Dual directional microphones enhance sound quality
• Noise Reduction Technology for superior clarity
• Charging dock included



Take Back Your Hearing!
It takes the average person nearly 7 years before they take action on their hearing loss. During that time the ability to understand is diminished. No wonder hearing loss is often mistaken for dementia in older people!
Take action now! Our Sigma Plus Smartphone-Enabled Hearing Aids are nearly invisible and cost up to 85% less than traditional hearing aids.
Take Back Your Hearing!
It takes the average person nearly 7 years before they take action on their hearing loss. During that time the ability to understand is diminished. No wonder hearing loss is often mistaken for dementia in older people!
Take action now! Our Sigma Plus Smartphone-Enabled Hearing Aids are nearly invisible and cost up to 85% less than traditional hearing aids.


Mobile App Controlled
With the new Sigma+, you can now control your hearing aids directly from your phone. Simply press and hold the up button to turn on each aid and connect via bluetooth. Use the app to customize your aid precisely to your hearing preferences.
Mobile App Controlled
With the new Sigma+, you can now control your hearing aids directly from your phone. Simply press and hold the up button to turn on each aid and connect via bluetooth. Use the app to customize your aid precisely to your hearing preferences.


Quick & Convenient
Select from the 4 presets, from the app or the hearing aids. The full natural sound is complemented by the adaptive feedback suppression, noise reduction and wide dynamic compression - allowing you to wear open fit domes for even better connection with the world around you.
Quick & Convenient
Select from the 4 presets, from the app or the hearing aids. The full natural sound is complemented by the adaptive feedback suppression, noise reduction and wide dynamic compression - allowing you to wear open fit domes for even better connection with the world around you.


Up to 14 Hours per Charge
Complete with convenient portable charging base, you can recharge your aids over and over. You'll never have to worry about finding power.
Up to 14 Hours per Charge
Complete with convenient portable charging base, you can recharge your aids over and over. You'll never have to worry about finding power.


What's in the Box
• 2 Sigma+ Hearing Aids
• Protective Carrying Case
• Charging Dock
• 4+ Earbud Sizes
• Cleaning accessories
• Instruction manual
What's in the Box
• 2 Sigma+ Hearing Aids
• Protective Carrying Case
• Charging Dock
• 4+ Earbud Sizes
• Cleaning accessories
• Instruction manual

This product is rated 5.0 of 5.0 stars.
It has received 2 reviews.
Frequently Asked Questions
How do the Nano Sigma Plus Smartphone-Enabled OTC Hearing Aids work?
The Nano Sigma Plus Smartphone-Enabled OTC Hearing Aids connect directly from your cell phone using a Bluetooth connection. To turn the hearing aids on, simply press and hold the up button on each hearing aid and connect via Bluetooth. Then use the Nano app to customize your aid to your specific hearing preferences. The Nano OTC Hearing Aids with Bluetooth are compatible with iOS and Android devices.
Are the Nano Sigma Plus Smartphone-Enabled OTC Hearing Aids Bluetooth hearing aids?
Yes, the Nano Sigma Plus Smartphone-Enabled OTC Hearing Aids are Bluetooth hearing aids, also known as wireless hearing aids or Bluetooth compatible hearing aids. They use Bluetooth technology (a type of wireless technology) making it possible for you to adjust the volume of the aids from your cell phone.
Can an OTC Bluetooth Hearing Aid be used for phone calls?
No, hearing aid wearers cannot use the Nano Bluetooth OTC Hearing Aid for phone calls. The OTC hearing aids do not stream phone calls or music - they only pick up outside sound.
Do I need a prescription to purchase Nano Bluetooth OTC Hearing Aids?
No, you do not need a prescription, medical exam, or fitting adjustment to purchase any Nano hearing aid since all our hearing aids are OTC.
How much do Bluetooth OTC hearing aids cost?
Nano Bluetooth OTC Hearing Aids cost less than $600.
Are Bluetooth hearing aids safe?
Yes, Nano OTC Bluetooth Hearing Aids are safe. They are FDA Registered and users are able to adjust the volume as needed. Nano OTC hearing aids have helped more than 300,000 Americans recover from hearing loss and Nano is one of the fastest-growing OTC hearing aid brands.
How do I charge the Nano Sigma Plus Smartphone-Enabled OTC Hearing Aids?
The Nano Bluetooth OTC Hearing Aids can be charged using the included portable base. Each aid can hold a maximum of 23 hours of use per charge.
What comes with the Nano Bluetooth OTC Hearing Aids?
The Nano Bluetooth OTC Hearing Aids come complete with 2 Sigma Plus hearing aids, a protective carrying case, charging dock, 4+ earbud sizes, cleaning accessories, and an instruction manual.
What are the best Bluetooth hearing aids?
The best Bluetooth hearing aids will provide improved sound quality, be easy to use, and have a long-lasting battery life to get you through the day.
How long will shipping take?
The Nano Bluetooth OTC Hearing Aids are shipped within 1 business day from when the order is placed. It can take anywhere from 2 to 5 business days for the order to arrive at your home.
Who can use the Nano Bluetooth OTC Hearing Aids?
Anyone with mild to moderate hearing loss can use the Nano Bluetooth OTC Hearing Aids.
Is there an age requirement for using OTC hearing aids?
Yes. Individuals must be over 18 years old to use OTC hearing aids.
How does someone know they have perceived mild to moderate hearing loss?
Someone might have mild to moderate hearing loss if they have trouble hearing speech in loud places or in groups, have difficulty hearing on the phone, need to increase the volume on the TV and radio, or if listening makes them tired.