I've purchased 5

These are great! Every time I've purchased one I end up gifting it. Great for any outdoor activities where you might encounter an unruly dog on the way. My neighbors dog would always greet me with it's annoying barking. Using training mode I got him to stop. I don't even have to use it anymore. It's construction is not the highest quality but it's cheap and effective. There is no on/off switch. It has a selector switch that allows you to go from flash light (on), to training and repel using the additional momentary on button on the top of the device. That said you do need to be careful where you keep it because your normal switch position for storing will be training mode and you may be activating it unknowingly.

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