Bumblebee is one of Optimus Prime's most trusted lieutenants. Although he is not the strongest or most powerful of the Autobots, Bumblebee more than makes up for this with a bottomless well of luck, determination and bravery. He would gladly give his life to protect others and stop the Decepticons.
Badly damaged in battle, Bumblebee lost the ability to speak verbally, though he can still communicate over inter-Autobot frequencies (in a fashion that seems somewhat akin to instant messaging, a usable but more distant and less personal means of interaction). He can also communicate with the Autobots' human allies and his friend, Sam Witwicky, by playing audio clips from popular media on his radio.
ALTERNATE MODE
Bumblebee is assigned to guard Sam Witwicky from the Decepticons, and poses as a dilapidated 1977 Chevrolet Camaro as Sam and his father are buying a car for Sam. Later, Bumblebee drives away from Sam's home to summon the Autobots. Sam thinks Bumblebee is being stolen, and chases the car on his bike. Sam then witnesses Bumblebee transforming into robot mode and reports it to the police, who believe he is on drugs. Bumblebee returns to Sam and his crush Mikaela Banes and protects them from an attack by Barricade and Frenzy, earning Sam's trust. When Mikaela criticizes the poor condition of Bumblebee's vehicle mode, he scans a passing 2009 Camaro Concept and transforms into the same model.
In Transformers: Age of Extinction, Bumblebee has a new vehicle mode which is a modified black colored 1967 Chevrolet Camaro, before he scans a 2014 Camaro and turns into a modified 2014 Chevrolet Camaro.
