Built-in professional-grade speakers: Adopting the design of built-in speakers, professional-grade sound simulation technology and chips, the sound function can be intelligently turned on or off by triggering the handbrake 3 times in a row. Intelligent voice broadcast: After it is turned on, it can realistically the iconic "puff" sound when the truck is running out of air, highly restore the real scene, further enhance the driving immersion experience, and make players feel as if they are in the cockpit of a real truck. Plug and play, no driver required. Players only need to connect the air brake to the computer through the USB interface, and the system can automatically recognize it, which improves the convenience of use. The USB and the handbrake can be plugged and unplugged at . The flush design of the USB and the interface protects the integrity of the interface and is more beautiful. Restore the force and travel of the real truck air brake operation: When the player pulls the brake lever, the internal precision sensor quickly captures the Capture the action and accurately transmit the data to , so as to the real air brake control in real time in , creating an immersive driving experience for players. Adapt to multi-scenario installation: the base hole supports most brackets. The base of our product has reserved a 40MM hole distance for gears and a 34MM hole distance for handbrakes. If you have a steering wheel bracket and the bracket has a gear mounting position or a handbrake mounting position, you can install it directly (hole diameter: 6mm). Color: Black Material: plastic+metal Package Contents: 1 * Handbrake 1 * data cable 1 * wrench 4 * screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.