|
Big Ear
Extend the range of your hearing for distant sounds with this electronic aid. Track sounds of birds, insects or even your friends. The Big Ear is a sensitive microphone with a high gain amplifier that combined with a parabolic dish* or 'shot gun' tube** makes a long range listening device. Microphone signals are amplified thousands of times to drive earphone (included) or speaker (not included). Includes nice case, battery holder, sensitive electet microphone, volume control, illustrated instructions, PCB has silk screen and solder mask
Requires 9 volt battery (not included).
*the parabolic dish is not included - can be made of paper, trash can lid or 'saucer' type snow sled.
** Shot gun tube is not included - can be made from carpet tube - ask and get one free from your local carpet store or better yet use a length of metal or PVC pipe!
|