listening device Audible and enforced frequency range 100HZ to 10HZ,Parabolic reflector diameter207mm,120seconds

listening device

Its's possible for you to hear sounds of any level over great distances and even comfortably record them.

You will not believe your ears,when you hear normally not audible birdcalls and sounds of any kind over grear distances.A nearly uncanny effect,as you experience it for the first time.This is made possible by the newest production of an individually adjustable and controlable electronic hightech noise amplifying system.

This  system allows the greatest possible elimination of disturbing backgroud noises through the use of a complex parabolic antenna technology.

Only those aoustic waves are seized,bundled and concentrated to the mictophone which have been targetted,the pollution of the targetted sounds through background noises is therefore minimized .Normally this is only possible through the use of complex electronic reconstruction and filter technology.

Features

1.This devise use a sophisticated roof prism optical system and turn focus ring until you see clearly

2.This digital listening set observe birds&animals at 8x magnification monocular.

3.Electronic digital recording listening hear animal sound over 300 feet away.

4.Digital recording sound with microphone

5.playback sounds or transfer them to your tape recorder

6.Frequency controller for reducing unwanted noise.

7.Equip with parabolic sound collecting dish and headphone

8.Powered by 9V alkaline battery

Box includes

Cleaning cloth

Headphone

Parabolic dish

Instructions

Dimensions

Unit Dimension:22cm*22cm*25.5cm

Parabolic dish diameter:21cm

GW:0.9Kgs

Update Date:2012-2-12 21:54:57

listening device