Franzis Haynes Bat Detector Kit
Description
Zavvi - The Home of Pop Culture Listen to nature with modern electronics! Assemble your own premium ultrasonic detector. Easy build kit circuit board with many components already mounted. Simple connections - no soldering required. Once built, start discovering! Listen to the sound of bats as well as other things that emit ultrasound. You'll be surprised at the number of usually inaudible sounds that surround us every day.
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