It is easy to install—simply unplug the handset cord from the base of the phone, plug the short cord (shown in the picture) in its place, and plug the handset cord into the jack on the bottom of the amplifier. That’s it.
If you want more volume, just slide the volume control (left) up to a comfortable level.
The tone control (mid right) lets you adjust the tone to give you the best clarity.
If you need even more volume, you can press and hold the boost button (bottom right). This gives you 40 dB of gain. In order to cut out feedback, while you are holding this boost button, it cuts out your microphone. Thus, you need to release the button when you talk when you are using this feature.
Uses a 9 volt battery (included).
Order the HA-40 in-line telephone amplifier for just $32.95.
“I am very happy with my HA-40 amplifier. My son called tonight and I thoroughly enjoyed chatting with him for a change. To me, it’s a miracle!”—M. G.