this is the phone shell case stand with camera installed inside.You just need put the battery into the phone shell case stand before playing the game.,then put it on the playing table ,nobody will find the difference .one battery can last 30 minutes. its scanning distance is 25-35cm. Within this distance it can scan the marked cards quickly and then transfer the data to poker analyzer for the analysis of poker results.
Camera lens :normal distance camera lenses
Scan distance : 25-35cm
Power : 40 mini per piece battery