Bluetooth 5.0 & Three Music Playback Modes Bluetooth FM transmitter adopts newest Bluetooth 5.0 chipset. It supports Bluetooth play, TF card play (up to 32GB), 3.5mm AUX output, meet your various needs. Note: Adjust to 107-108MHz to decrease the radio interference.2 Smart USB Ports - PD 3.0 + QC 3.0The Bluetooth transmitter is connected to the car cigarette lighter. It has 2 USB ports: Type C PD3.0 20W + USB A QC3.0 18W, which charges 4x faster. You can simultaneously charge 2 compatible devices.LED Digit Display & Colorful Surround LightThe vehicle voltage is displayed when the FM transmitter is inserted into the car cigarette lighter and powered on. 7 multi-coloured options create a comfortable and romantic atmosphere in your car to fit your mood. In addition, the last paired phone can be automatically connected.Hands-free CallingUpgraded car FM transmitter with build-in microphone. It will automatically switch from music playing to hands-free talking when answering a phone call, single press the top button to answer / hang up a call, long press to decline, double click to redial the last called number, long press to activate Siri. Convenient one-button control makes driving safer.Wide compatibility Bluetooth car adapter is compatible with all Bluetooth enabled devices, such as iPhone 6/ 7 / 8 / iPhone 13 / 14 / Galaxy S22 / S9 / S8 / S7 / S6 and other smartphones, tablets, USB devices, etc.