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.
Users have ears enhanced to hear with amazing clarity, distance, and even frequencies outside normal range. Users ears can pick up every single sound, can decipher layer upon layer of differing sounds/conversations, locate the source of noise or pick up a sound from a mile away in a busy city.