[Product Information]

Car Radio Transmitter: It transmits music from the Bluetooth-enabled phones or SD card(Max 32 GB) to your car radio without Bluetooth. You can also connect it to your car stereo system via the provided 3.5mm audio cable
Quick Charge 3.0 Dual USB Charger: Fast charge your QC 3.0-enabled phones， backwards compatible with QC 2.0-enabled ones like Samsung Galaxy S8 S7. The 2.4A port delivers the fastest possible charge to all non-quick charge smart phones or tablets. Support charge two devices simultaneously
Handsfree Calling: Built-in a microphone allows you make hands-free calls when driving. Automatically switch to hands-free mode from music playing when receiving a call. Support A2DP， noise filter， voice prompt. Enjoy the crystal clear sound when listening to audio book or Pandora
On/Off Switch: You can turn off the screen and connection by long pressing the “▶▏”button. If you want to listen to the normal radio stations， you can turn off it so that it won't have interference. Note: 2 USB ports can still charge your devices
Large Screen & Easy Operate: The 1.64 inch LCD display tells you the the frequency， volume， incoming phone number， current song information and car battery voltage. The big buttons help you operate it easier