?Customer Service and Technical Support?We offer 30-day Money-Back, 12-month Replacement, life-time Technical Support. Please feel free to contact us if you have any questions, we will reply to you within 18 hours and help you solve the problem. ?How to get sound from the car speaker?This 6.86-inch touch screen car stereo with built-in speaker,you can also use Bluetooth connection to have the sound play by built-in speaker of the carplay stereo.But if you want louder sound, you can transmit its sound to the car speaker in two ways: ?Using an FM transmitter, you can set the same frequency on the device and the car radio. ?Using an AUX cable,connect it to the original auxiliary interface on the car through the AUX cable. ?Portable CarPlay with Front and Rear Camera?This apple car play screen includes a wired backup camera for parking assistance, automatically displaying the rear view when in reverse. It also has a front camera to record driving footage, along with built-in DVR to save and playback recordings on the display. The 64GB card allows media playback. ?Easy Installation & Fit All Different Car?Plug and play directly with dashboard via connect cigarette lighter.You don't need to disassemble your car's console, keep your car original radio, perfect coexistence.The car radio with screen is suitable for most motor vehicles, such as cars, trucks, vans, buses, pickups,sedans, RVs, campers, and more. ?Unique Foldable Mount Design?Foldable carplay screens allow for flexible portable use and compact storage when not in use. The adjustable display can be positioned in the optimal viewing angle then folded down into a slimmer size to tuck away neatly, maintaining valuable dashboard space. This lightweight and removable design is perfect for transferring between multiple vehicles for entertainment on the go. ?Wireless CarPlay & Android Auto?Our portable carplay car stereo can easily connects to smartphones to enter another smart system and allows you to access phones maps, calls, messages, music, and more apps by wireless connection, much safer than using phones when driving.