i love all mine.. since my oldest is deaf i have always used hand signals around them all and now i can yell at them com across the field with my hands and all three know exactly what i want, i can say hey to get the younger dogs attention the trick is getting the deaf dogs attention when she's having fun/ sometimes she looks right at me though watches my hand signals than turns her face and pretend she didn't see me. i need to find more pics i should have tons