Football Equipments

The professional football helmet consists of several distinct parts: the shell, jaw pads and air bladders, face mask, chin strap, and mouth guard. The shell is constructed of hard plastic with thick padding on the inside, a face mask made of one or more metal bars, and a chinstrap used to secure the helmet. Helmets are a requirement at all levels of organized football, except for non-tackle variations such as flag football. Although they are protective, players can and do still suffer head injuries such as concussion.
Each position has a different type of face mask to balance protection and visibility. There are at least 15 different facemask styles. New design for the helmet includes an integrated faceguard featuring shock absorbing "Energy Wedges" that reduce the force of impacts to the faceguard.
The NFL allowed wireless communication in regular-season games in 1994. Rather than coaches calling a time-out in order to give a play to a quarterback, many of today's teams are opting for radios inside their quarterback's helmet. The helmets are set up with a small speaker in each ear hole. Quarterback coaches or offensive coordinators on the sidelines talk to the quarterback with a radio, giving him specific plays and options. Players from the "old school" might argue that this creates an unfair advantage, but proponents say that the radio helmets make for clear coach-to-QB communication, even in large, noisy games like the Super Bowl.
NFL rules state that all helmets with a headset in them must have a visible green dot on the back. Since only the quarterback can have a wired helmet, it stops other players using the quarterback's helmet. A few times in 2006 the holder on the field goal attempt was told to pull up and throw or run at the last second because of a change the coaches saw on the field. This gave teams an "unfair advantage" in the eyes of the NFL. The new rules let each team know who is wearing a headset and who is hearing the plays being called.According to a press interview held with the Tampa Bay Buccaneers, the quality of the sound is good, but crowd noise factors in. “It’s about like what you’d hear over a loudspeaker,” said Bucs QB Shaun King. “It can be hard to hear when there’s a lot of noise on the outside, but it’s pretty clear.”