Runny eyes. Sneezing. Nasal discharge. Loss of appetite. Shelter workers all know the signs. Feline upper respiratory infections (URI for short) are the most commonly encountered disease problem in animal shelters. Some shelters have cases all the time. Others have outbreaks that can only be referred to as epidemics that result in the suspension of feline adoptions.
Low-Tech Assistive Listening Devices Still Boost Hearing. Every amplifying device has three parts - a microphone, a mechanism to amplify sounds picked up, and a speaker that alters the sound and transmits it to you, Loavenbruck explains. While traditional hardwired assistive listening devices are still popular and inexpensive, wireless technology is getting the biggest buzz.
1 The amount of noise reduction varies.  Directional microphones. These are aligned on the hearing aid to provide for improved pick up of sounds coming from in front of you with some reduction of sounds coming from behind or beside you. Some hearing aids are capable of focusing in one direction.