Description
Ultrasonic metal whistle is a high frequency whistle
* with frequency protection guarantees constant tone frequency
* individual tuned
* very quiet
* dogs primarily respond to tones and acoustic signals, not to our speech, learn faster with constant tone and signals
* high-frequency whistle is suitable for training
* Whistle sound is different from normal sounds
* Frequency range adjustment can be done with a screw on the squirrel
* Material: metal / plastic
* Black colour
