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Key safety guidelines for using the HearAll™ Cell Phone Amplifier.
Instructions for installing the rechargeable battery into the device.
Steps for charging the SA-40, including indicator light status.
Default settings for Mode, Volume, and Tone out of the box.
Guide to connect the SA-40 to your cell phone via Bluetooth.
Explains how to select between Handset, T-Coil, and Speakerphone modes.
Instructions on how to answer an incoming call using the device.
Steps to initiate a call using voice dialing or manual input.
Guide for attaching and using the SA-40 in a car for hands-free calls.
How to use the device with T-Coil hearing aids for amplified sound.
How to activate and deactivate the microphone mute function.
Solutions for common problems like no sound or connection issues.
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