- Fits most FAST helmets and other helmets with ARC rails on the sides, providing broad compatibility in the field. - Telescopic adjustment design with an adjustable helmet connection arm for precise headset positioning and user comfort while wearing the helmet. - Includes two adapters; the rail adapter is compatible with OPS Core ARC and Team Wendy M-LOK rails and suitable for all 19-21 mm helmet guide rails. - 360-degree rotation and up-down movement allow flexible positioning; the holder’s card position on the headset can also rotate; the stand length is adjustable to fit different setups and user heights. - Maintains a stable, secure connection on helmet rails while allowing quick adjustments during use, reducing the need to remove or readjust gear. - Clear, straightforward operation suitable for dynamic environments such as field operations, training, and maintenance scenarios. Use scenarios - Field operations with FAST helmets: quickly position and orient the headset for optimal communication access, then rotate or adjust height on the fly as terrain or gear changes. - Training or range drills: switch between different helmets or rail systems with the included adapters, while maintaining a comfortable headset angle and reach. - Mobile or vehicle support: adjust the stand length and rotation to fit tight spaces, ensuring the headset remains accessible without hindering movement.