Most of these have units use an underpowered FM Transmitter but not this one.
This unit puts out a very clean signal that results in zero hiss or distortion.
The Bluetooth is easy to pair and the sound quality is excelent. and phone calls work great too.
The FM transmitter has great dynamic range
There are 3 USB ports: 1 quick charge port, 1 charge port, 1 usb data input for mp3.
1 Micro SD card slot for MP3's
The LCD is sharp and higher resolution
Overall it's very simple to use and it sounds so much better than the other 7-8 units I've used over the years.