APP is available for free on Android & Apple devices, turns any smartphone into a wireless remote control. Latest version Bluetooth to smart transferring music, via a dedicated Bluetooth button that makes it easier than ever for campers to connect their smart device to their stereo. 3 Zones Wall Mount RV Radio Stereo, play AM/FM/CD/DVD/MP3/MP4 /HDMI in & out with ARC /Digital 2. 1/Surround Sound. CEC allows user to use ONLY one remote to control multiple HD equipment. Via NFC label it can complete a quick BT pairing. USB port uses on 5V charging for Android & Apple devices.