1 a wasting away of the body, as from poor nutrition, nerve damage, or disuse. 2  to undergo atrophy; wither; degenerate:His crippled leg began to atrophy with no exercise. 3  to become weakened; decline:Industry atrophied in bad economic times.
Voice Amplifiers / Long Range Listening Devices. Listening devices can be utilized for a variety of purposes including listening through a wall, listening from a distance or enjoying your favorite animals in the wild. More complex systems contain an audio transmitter and receiver.
Magnify faint or distant sounds with the powerful Bionic Ear & Booster pinpointed sound amplifier/listening device. The Bionic Ear increases sound by up to 40 decibels using an omni- directional microphone, a solid-state amplifier and hi-fidelity earphones for concert hall quality sound reproduction.