The YADA App View Wireless Solar-Powered Adjustable Backup Camera combines the power of technology and the sun. This system has a built-in lithium-ion battery that recharges through the solar panel. Utilizing a 2.4Ghz digital signal, the camera transmits a 720P rearview video image to the smartphone and YADA Drive app without interference. The wire-free installation and mounting process couldn't be easier. You can even ask Siri to "Open YADA Drive app" when it's time to reverse. Enhance your drive, today.