Every people need to use the key every day. Maybe sometime they need the key chain. Now our company put forward key chain infrared camera that nobody can find this secret. This is a good quality of key chain infrared camera and it can be changed the battery when its power is run out, so that you will be able to use it constantly. Moreover, its battery life is about 2-3 hours. It can work with any styles of poker analyzers such as CVK350C, CVK400 analyzer, or Samsung AKK30 and so on. Of course, this item can be used in different poker games, such as World Poker Tour, Casino Games, Magic show of marked playing cards and etc.