Multiplayer Bingo do not use the internet. All devices must install this program everybody can send numbers to others by WiFi .

Range :
From the cellphone in the center of building Server to others receiving WiFi.

Restriction :
When the user of building Server chooses to quit all users joining will be forced to quit Server.

Advantages:
-No surfing the Net
-Multiplayer game
-Individual Nickname
-Number were adjustable