Why strain to hear on the phone when you can turn up the volume? Our powerful amplified phones increase sounds up to 200 times louder for extra loud, clear conversation. The adjustable tone control lets you customize the amplifier for optimum word clarity and audio output jack allows you to connect a headset neckloop, or cochlear implant adapter. Hearing aid compatible. Comes complete with built in bright ring flasher (as well as voice mail and missed call indicator light) and super loud ringer with adjustable tone control.