1. Material: Aluminum alloy + ABS 2. Length: 183 +/- 5mm 3. Interface: USB or Type-C 4. Connection method: WiFi + Bluetooth 5. Supported mobile phones: Applicable to iPhone 6 and above 6. Plug and play, no cumbersome steps, easy to use. 7. Built-in wireless Apple CarPlay function, which can easily realize car-machine interconnection. 8. Automatic senseless connection, no delay, sensitive response. 9. Adopt 5.8GHz wireless module, high-speed transmission, not easy to drop the line, stable and reliable 10. Support OTA online upgrade