【QC3.0 & 2 USB Car Charger】This car bluetooth transmitter equipped with 2 USB ports and can charge 2 devices with overcharge protection. The QC 3.0 connector automatically detects your device and charges it four times faster than regular chargers. Another 5V/2.4A (with music icon) is for USB flash drive recognition or charging. No more annoying waiting. You can charge your phone and PC at the same time when traveling. | 【HiFi Music & 3 Playback Modes】This fm bluetooth car adapter supports USB flash drive (≤32G) / TF card (≤32G) / music playback, bringing more stereo and crystal sound with its high-fidelity system. It also supports plug and play as well as various audio formats (MP3/WMA/WAV/FLAC). | 【Colored LED Backlight】Bluetooth fm transmitter car has 7 colored ambient lights that switch to Green/Red/Blue/Yellow/Cyan/Purple/White. meet your expectations. It facilitates the visibility of the transmitter at night and can easily be switched off. | 【Hands-free & GPS Navigation】This car bluetooth transmitter supports hands-free calling and voice navigation, making your driving safer and more focused without being distracted to check the screen frequently. CVC noise canceling technology can also effectively reduce the noise, so you can make calls to family, friends and colleagues clearly. | 【BT V5.0 & Auto Connect】BT V5.0 is very stable and fast, with this bluetooth adapter for car without disconnecting when connecting to smartphones. It can also automatically reconnect the last connected devices.