Specifications High-concerned chemical:None Origin:Mainland China Product name:Car-machine interconnection smart box Product color: As shown in the figure Product material:Metal + Glass product features: 1. Fifth-gen chipset with 2.4/5GHz dual-band Wi-Fi and Bluetooth 5.3. Maintains 40ms low latency for real-time navigation, o streaming and call synchronization. 2. Automatic recognition through original USB interface. Built-in memory enables 3-second reconnection on subsequent starts without app dependency. 3. 423812mm aluminum housing with graphene thermal film. Operates at -22F to 185F without performance throttling during extended use. 4. Retains steering wheel controls, touchscreen and voice assistant functionality. 5. Validated across 200+ 2016-2024 vehicle models. Supports seamless switching between three different vehicles with single device. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can feel free to contact mewe will give you some suggestion, but it is for you reference only. Shipment includes:1PCS Car-machine interconnection smart box Thank you for your support!Welcome to buy from us!We guarantee the quality of our products.Welcome to visit.Hope you have a nice day!