Mel-8704R-PSA - Programmable Sound Amplifier
1 of Volume Control Earbud ($14.95 value!)
The Mel-8704R-PSA is a very sensitive device that uses a microphone as a detection sensor / transducer. It is designed specifically to detect very subtle sound wave vibrations within the environment. In addition, an audio output with adjustable gain is provided which allows the user to hear sounds at an amplified level. This is perfect for hearing impaired individuals.
There are 5 individual sensitivity steps that you can use. Each time you press the range button, an LED on top will blink indicating the sensitivity setting selected.
Level 1 = RED is the default (least sensitive)
Level 2 = PURPLE, RED
Level 3 = BLUE, PURPLE, RED
Level 4 = YELLOW, BLUE, PURPLE, RED
Level 5 = GREEN, YELLOW, BLUE, PURPLE, RED (most sensitive)