Includes the H251N SupraPlus Noise-Canceling Headset and RJ9 adapter. Amplifies incoming voices up to 45dB on your handset or headset. Can be used with any headset with an RJ9 plug. Patented technology enables the amplifier to work with virtually all business telephones.Digital Sound Processing technology eliminates virtually all distortion, echo effects and unwanted static. Digital Tone Enhancement allows you to boost and enrich the speech frequencies you can't hear well. Automatic Gain Control optimizes the sound level for superior listening comfort.
AC adapter included (9V battery optional). The item "Serene Innovations UA-50 Business Phone Amplifier with H251N Headset" is in sale since Wednesday, November 26, 2014. This item is in the category "Consumer Electronics\Home Telephones & Accessories\Cordless Telephones & Handsets". The seller is "hearingvisionstore" and is located in Eden Prairie, Minnesota. This item can be shipped to United States.