Key features:

1. two extension arms with 2 gimbal heads with 1/4'' screws for external microphones, lights, cameras and other accessories. Adjustable orientation and shooting angle
2. new head locking structure to prevent secondary distraction
3. 3-way height adjustment of the center column support
4. Silicone spacers at the interface to protect the desk and increase friction
5. Adjustable position of the individual joints of the boom