The CAMVATE C2817 T-BAR : BRACKET ARM + DUAL COLD SHOE includes double cold shoe mount adapters on both ends and a central ball head holder with numerous 1/4" and 3/8" mounting points on the 15mm crossing rod. The whole setup is used to support two accessories or devices at the same time, such as a microphone and a monitor. The adjustable ball head holder features a 1/4"-20 male connector attached to the middle of the T-bar, and a shoe mount adapter that can be sturdily secured onto a camera top shoe mount. The ball head support allows you to adjust the angle as you want with its 360° rotating and 90° tilting design.