This issue is specific to the equipment used in a few retail environments. Xbox 360, like portable phones, wireless network routers, and Bluetooth devices emit radio frequency operate in the 2.4GHz band. Microsoft has one of the most robust testing programs in the industry and has ensured that Xbox 360 meets all FCC/ETSI requirements and rules for operation in the 2.4GHz band. It is possible that devices that do not comply with FCC/ETSI rules of operation in this band may not properly handle interference from other 2.4GHz sources. Such devices would be extremely rare in a home environment.