Image: Hundepfeife01
Size of this preview: 800 × 600 pixels. Other resolutions: 320 × 240 pixels | 2,560 × 1,920 pixels.
Original image (2,560 × 1,920 pixels, file size: 2 MB, MIME type: image/jpeg)
Description: Ultrasonic dog whistle. It produces sound in the ultrasonic range, with frequency above the audible range, which dogs can hear but people can't.
Title: Hundepfeife01
Author: Sebastian Hartlaub
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
Attribution Required?: Yes
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