Fully operational and works great. Lets you add Bluetooth functionality to any car with a FM radio. No longer need it as I traded in my old car.

2 PORTS USB CAR CHARGER: Support charging two devices simultaneously, comes with 5V-2.4A and 5V-1A charging ports, and the matching smart IC can automatically match the current.
ANSWER CALLS HANDS-FREE: High-performance microphone with Noise Suppression (CVC) technology, grants you crystal clear call. Answering/redialing/dismissing or ending call just simply click a button.
IMMERSE IN HiFi MUSIC: Insert a USB flash drive which contains MP3 files into the "RIGHT" USB port and enjoys it. If that's not enough, it can also support your playlist with a full range of audible frequencies with no distortions of the original signal from your MP3, iPhone, Android Smartphones and more Wireless enabled devices.
SUPER EASY TO PAIR WITH Wireless: Plug the Bluetooth FM transmitter into your vehicle's 12V power port or cigarette lighter and tune radio to the same frequency as transmitter, then pair your device via Wireless.
WIDE COMPATIBILITY & MEMORY FUNCTION: Fit for all Bluetooth enabled devices such as iPhone, iPad, iPod, Tablet, and other Android Smartphones. Also it will auto-connect to its memorized paired Bluetooth device when power on.