Review on Wireless Car FM Transmitter with Bluetooth, Dual USB Ports, AUX Input/Output and Voice Navigation - MP3 Player Hands-Free Car Kit, Radio Audio Adapter for U Disk, TF Card, Folder Playback by Lorenzo Wood

When I put a 128GB TF card into this unit, it said "blank card". Then I put a 32GB TF card in it, it froze. I haven't tried the USB slot yet to see if he liked the description of his reading ability or not. I will update later. (The GB reading capabilities of this particular model was the only reason I chose this particular model from thousands of budget FM modulators. I searched for this model after hours of research specifically because I want my music on a 128 GB -TF card and a 128GB USB drive. If it fails for the only reason I bought it, it's very disappointing. If I wanted to stream music from my Bluetooth phone to an FM mod, I could ANY buy another model. as they say?) I will try the possibilities of USB and then update my review.