Great Product, Very invested

I have a dog, medium, 2 years old.

I have so many items for pets that I can't count.

But most of them was cheaply made and broke very easily. 

I got the item only 2 days ago and I can feel its way different then the others.

First, there are 4 unites, which is great, and Ice (My dog) reacted very good to them.

2nd great thing, the buttons are very high quality made. 

My dog knows the sound of the click since he's 1 month old, now he's 2 year old.

Very satisfied, highly recommended. 

P.S 

The clicker include a Whistle, which  is great and save a lot of engagement, no need to change hands or hold another things in your hands.
I would recommend to clean the Whistle before use.