All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
Easy to Use- with handle, it makes much easier to hold and deal with a hungry calf at the same time.
High-quality –Materials- the bottle is heavier material and don't collapse inward while the calves are drinking. Nipples are made of rubber, which is too durable for a hungry calf.
About vent hole-there is a hole in the nipple that had to be cleaned out in order to keep the air flowing through correctly.
Tips- The nipple is for calves .Not new borns nipple too big. for young goats.
Package included-a 2.11 quart bottle (with a teat) , a replacement teat.