Boeing 737 Throttle Levers Addons for Thrustmaster TCA Boeing Edition Test Video, Sierradelta3D

New Product! Boeing 737 Full Electronic Gray Thrust Lever Addons for Thrustmaster TCA Quadrant Boeing Edition
If you would like to examine and purchase the product in more detail, our stores are: homecockpit.et...
With the software we developed with this product, Thrustmaster and many other brands work on XBOX and PC platforms. After installing our product on your device, all you have to do is assign keys from the settings. All settings will be sent to you via message after purchase. We are pleased to present you the Boeing 737 Gray Throttle Lever that we designed for the Thrustmaster TCA Quadrant.
If you would like to examine and purchase the product in more detail, our stores are: homecockpit.et...
With the software we developed with this product, Thrustmaster and many other brands work on XBOX and PC platforms. After installing our product on your device, all you have to do is assign keys from the settings. All settings will be sent to you via message after purchase.
This video is a video on how the product works.

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What was the alarm in the start of the video?