1. Material: ABS 2. Interface: USB 3. Connection method: wired/wireless 4. Plug and play, no complicated steps are required to easily achieve car-machine interconnection 5. Automatic and seamless connection, no delay, and sensitive response 6. 5GHz transmission rate, high-speed transmission, stable and reliable 7. Strong compatibility, supports major categories of APP and mobile phones 8. Supports OTA online upgrade, convenient and fast to use