We use Electroplating technology ,ABS material the the soft green LED indicate light, make it become the unique AGPtek® car FM transmitter in Amazon. Features a high-contrast, easily-read display and gear button controls

Features:

• Frequency range: 88.1-107.9Mhz(0.1Mhz/step)
• Input: DC 12V(Vehicle power)
• USB output: 5V 2.1A max
• Color: Black
• Color of the LED light: Green