‎1 CR2 batteries required. (included)

Wireless CarPlay/Android Auto: Effortlessly connect your smartphone wirelessly to apple carplay and Android Auto for a cable-free experience. And you can easily make/answer phone calls, listen to music, GPS navigation, integrating smart voice control via Siri and Google Assistant.And our car stereo is perfect for busy commuters, road trips, and staying connected on the go. 4K Front & 1080P Backup Cameras for car: Our wireless carplay is equipped with two cameras , which support HD night vision.With the built-in 4K dash camera, you can enjoy a breathtakingly clear and detailed front view, ensuring that every moment on the road is recorded in stunning 4K resolution.Also our wireless carplay will display and record the image behind the car automatically when the vehicle shifts into reverse.64G SD card is included.(Tips: The card is already in the screen slot) Loop recording and G-sensor: The loop recording ensures that your carplay screen can automatically save videos while you're driving and will overwrite the old recordings if the card is full. And in the event of a sudden movement, the collision sensing function will quickly lock the video, preventing it from being overwritten by other recordings. This ensures easy access to find important footage when you need.