When I first bought this item I got it because I had heard good reviews about this item as it acted like a real dog. It can laugh, cry, sing and dance all in response to your actions. Once I had bought one all my friends had to get one. We had a lot of fun together playing with these. The tech pet connects via jack socket and works with iPhone 3, 4 and 4â€™s and even works with your iPods! This item is a must buy for all pet lovers.