2 x USB Charging Ports: DC 5 V / 5.4 A Max. ( QC3.0 + 2.4 A )TF Card / Micro SD Card Slot ( up to 32 GB )Pause, Previous / Next ControlMemory of Last Frequency, Track Number and VolumeSimple Switching Between BT / TF / AUX-IN / USB Audio SourcesFM Frequency Transmitting Range: 87.5 - 108 MHzQuantity of FM Frequencies: 206Power: DC 12 / 24 V (Car Power Plug)