Serene Innovations HearAll SA-40 Cellular Telephone Amplifiers
Last verified June 16, 2026 · classified April 26, 2026
What it is
Summary
AI-generated from vendor-published content · April 26, 2026
The SA-40 is a Bluetooth handset that pairs wirelessly with your cell phone and boosts incoming call audio by up to 40dB — roughly 100 times louder than a standard phone earpiece. It's designed for people with mild to moderate hearing loss who find their smartphone's built-in volume insufficient, especially in noisy environments, and includes adjustable tone control to emphasize the frequencies where someone's hearing is weakest. The package includes a hands-free clip and magnetic visor mount for car use, and the device has a dedicated T-coil mode that sends audio directly to a hearing aid's telecoil, making it useful both for people who wear hearing aids and those who don't. Bluetooth pairing works with most phones, but the device uses Bluetooth 2.1, an older standard, which may cause compatibility issues with some newer smartphones.
Quick Facts Catalog facts · auto-generated
- AT Act lending
- Out of pocket
- Vocational rehab
What Setup Looks Like
- Out of the box
Power on the SA-40 and use tone control and volume settings for calls right away if already paired. - With a guide
- Put the SA-40 into pairing mode and connect it to your cell phone via Bluetooth (similar to pairing wireless earbuds — typically takes 5–10 minutes).
- Adjust tone control to find the frequency setting that sounds clearest for your hearing.
- If using T-coil mode, switch to that setting and ensure your hearing aid's T-coil is activated — consult your hearing aid manual or audiologist if unfamiliar with this feature. See manufacturer support resources for detailed instructions.
Getting it
Try Before You Buy
Devices like this are often available to borrow through your state's AT Act program — typically free or low-cost — so you can try it before buying or pursuing funding.
Where to Get It
Some links may be affiliate links — WhatCanHelp may earn a small commission from purchases at no extra cost to you. More on affiliates →
As an Amazon Associate we earn from qualifying purchases.
How to Fund This
Equipment like this is often pursued through official state programs. These are common starting points — each program decides its own eligibility and what it covers, so the first step is always a phone call.
Compare & explore
Sources & fine print
Vendor facts (name, price, platforms, vendor link) sourced from Serene Innovations — view on vendor site; last verified June 16, 2026.
Classification & description AI-generated from vendor-published content on April 26, 2026 · confidence: high. Vendor specs may lag; verify before relying on details in a clinical or funding artifact.