Features:

• Adjustable to any position
• 4 outbuilt springs
• Knob to hold the mic arm 
• Horizontal or vertical installation
• Hollow beam enable cable go though inside
• Stable design of 2 tubes lower section and 2 tubes upside 3/8" x 16 T (male) or 5/8"x 27 T (male) general purpose thread, easy to connect with other accessory
• ASD-40 mic arm has a wide recording range
• Can be widely used for personal recording, podcast etc.