[7 COLORS LED BACKLIT MODE] 7 colors lighting modes and 1 cycle color mode that can get a visually stunning display of colors, you can keep 1 color or play the colors in turn. It helps you easily use in the dark, safer for driving. [HANDSFREE BLUETOOTH TRANSMITTER]Connect cellphone and this Bluetooth adapter via Bluetooth, One-click the button to answer/redial/hang up or reject calls. Built-in microphones and noise suppression (CVC) tech for clearer Hands-Free Call. You can keep your eyes on the road making your driving more interesting and safe. [TYPE-C & QC USB CHARGER] Fit 12V/24V Car cigarette socket.This car charging can fast charge two devices simultaneously via the PD3.0 and QC3.0 port. The PD Port can fast charging compatible with Samsung, iPhone, Google from 0 to 50% half an hour. The Quick Charge 3.0 Port, charges devices from 0% to 80% within 35 minutes. [MUSIC ADAPTER & PLAYER]Connect car radio and this Bluetooth adapter via the FM channel. Then you can enjoy music from Bluetooth devices/TF card(64GB) /USB flash drive(64GB) to the car stereo. [SAFE TO USE]Built-in over-current protection, over-voltage protection, short circuit protection, effectively prevents multiple problems. Worry-free 12-month.