Complex sentence: Sennheiser is mainly known for its consumer headphones and professional microphones, such as the MKH 416 short shotgun, which came to be the Hollywood standard shotgun microphone; and the 816, similar in design with longer reach.
Split into simpler sentences: Sennheiser is mainly known for its consumer headphones and professional microphones. The most famous microphones by Sennheiser are the MKH 416 short shotgun, which came to be the Hollywood standard shotgun microphone, and the 816, similar in design with longer reach.