Small dogs pack a big personality and now they have a bark collar to match! The NanoBark Collar is the world’s smallest low-profile and lightweight bark collar. With the size and weight of your favorite smartwatch NanoBark reminds your dog that no he doesn’t need to bark at the mail carrier while you’re at work. Built to withstand a splash or a rugged road trip this innovative dog bark collar is perfect for life at home and on the go.