A Decepticon cassette, one of the original Generation 1 Series 1 TransFormers. Laserbeak transforms from a bird (buzzard or eagle) mode into a cassette mode, and can be placed inside Soundwave as a cassette.
In various formats (TV series, movie, children's books, US and UK comics) he is used mainly as an espionage agent who finds out secrets while perched on various roofs and ledges. Although his tech spec says that he is too afraid to make a good spy and that he really specialises in interrogation, he is never shown this way in his various appearances in print and on screen.
"Well done, Laserbeak. Unlike some of my other warriors, you never fail me" (Megatron, in TransFormers: The Movie).