The PartnerMic is discreet and easy-to-use. This remote microphone allows for optimal one-to-one conversations in noisy environments. Attach it anywhere on your companion's shirt or jacket, ideally 8 inches below their mouth. Speech is streamed up to 80 feet to your hearing aids. Alternative use by placing flat on a table or in front of a sound source such as a TV. The transmission distance can be reduced if the signal is blocked by obstacles (walls, furniture). The Easy Line PartnerMic is compatible with Relate®, Phonak, and Unitron hearing aids. Please consult with your hearing healthcare provider prior to purchase to verify compatibility.