During the Beijing Olympic Games, what items are restricted from being brought into the competition venues?

Restricted projects mainly include the following contents:

1, soft and hard packaging of drinks and foods. 2. Fragile articles and various containers, including but not limited to glasses, thermos cups, kettles, lunch boxes, etc. 3. Musical instruments, including but not limited to playing musical instruments and whistling. 4. Emergency watchbands that are inconvenient to bring into the seating area, such as bags, mobile phone belts and other personal items. 5. Flags and flagpoles of countries that have not participated in the Olympic and Paralympic Games with a length of more than 2 meters or a width of more than 1 meter. 6. Any banners, slogans and leaflets, including but not limited to commercial, religious, political, military, territorial, human rights, environmental protection, animal protection and other promotional materials and exhibits. 7. Any unauthorized professional camera equipment. 8. Sharps such as knives, bats, long sticks, umbrellas with long handles, cameras, camera stands, or articles that are easy to cause personal injury. 9, lighters, matches and other ignition devices. 10, animals other than guide dogs. 1 1. Any means of transportation other than strollers and wheelchairs, including but not limited to electric bicycles, scooters, bicycles, scooters, skateboards, roller skates, etc. 12, unauthorized walkie-talkies, power amplifiers, radios, laser devices, radio equipment and other items that interfere with Olympic electronic signals.