NEW In Line Amplifier Tone Control 40dB WH (Special Needs Products)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Designed for People with Mild to Severe Hearing Loss </span></li><li><span class="a-list-item"> In Line Amplifier </span></li><li><span class="a-list-item"> Connects Easily Between Corded Handset And Phone Base And Is Compatible With Most Home And Office Telephones </span></li><li><span class="a-list-item"> Adjustable Amplification Up To 40 dB </span></li><li><span class="a-list-item"> Battery Included </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/21WZFAFJM9L.jpg">