Bought this last year when it was posted here for $12 and it's been great. Went looking on Amazon for another. $9.99 is a fantastic deal. No code needed.
Dual USB Car Charger (Output 3.4A)
USB1 supports music stream from U-disk and 5V/1A charging output for smart phone. USB2 automatically identifies connected device and its unique charging requirement then delivers exactly the right amount of power to match your device's needs (5V/2.4A).
Goose Neck Design
Flexible metal hose, Convenient to adjust its direction and viewing angle.
1. Support MP3/WMA format music play.
2. FM transmitter working frequency 87.5-108.0MHz
3. Auto memory function.
4. Support AUX cable output.
Bluetooth Sound Processing: A2DP
Bluetooth Version: Bluetooth 4.2+EDR
LCD Dimension: 1.4'' LCD Display
Car Bluetooth FM Transmitter *1
3.5mm Audio Cable *1
User Manual *1