The iBand is an accessory device can be exchange data between users with other people.
As the technology is related to the user by the touch of the hand or controlled by gesture
and it don' t an obstacle to the movement of the body.
Using the infrared to help positioning receiver signal, combined with the sense of up ,down from movement of body and match the two devices to communicate with others.
This device will be enabled only when the users have in the same direction. And it will compare and exchange information within the system.