[We Care For You] - SOARUN promises a lifetime warranty to each customer. If there is any problem with the product, please feel free to contact us. We will certainly provide you with a satisfactory solution within 24 hours. [Safer Protections ] - Multiple protections for overcurrent, overvoltage, overload, overheating, and short circuits. Let you enjoy a safe and comfortable driving journey. [HiFi Treble and Bass Available] - The sound output will be better when both effect keys turned on - Bass/Treble mode can be easily adjusted, just press the button "BASS" or "TRE", you will enjoy powerful or peaceful music you like. [1.6” Color Screen/Flexible Gooseneck] - 1.6" LED screen is large and clear enough for you to easily read at daytime or night for incoming calling, song name (Under TF/U-disk Modes), voltage, volume, etc. The rotatable gooseneck of the wireless radio adapter can provide you with an adjustable viewing angle and optimal viewing comfort of LED display screen. [4-in-1 Bluetooth FM Transmitter] - 4 different audio transmission ways: Bluetooth; AUX in/out Port; U Disk; TF Card, multiple Input Options for you. Our bluetooth radio transmitter for car has broad compatibility with iPhone (including X, XS, 11/12/13/14 Pro Max), Samsung, LG, Sony, Android, iPad, and more phones. [30W PD&QC 3.0 Fast Charging] - SOARUN Bluetooth car adapter equipped with PD 30W Type-C and QC3.0 18W USB charging port, two devices fast charging at the same time. Support super fast charging for iPhone/Google/ iPad pro/Android devices. This 48W high-power car adapter charges faster than the most car Bluetooth adapters on the market. [New Upgraded Bluetooth 5.3 Version] - SOARUN Wireless FM Bluetooth transmitter uses the latest Bluetooth 5.3 technology, optimizing the old Bluetooth version of transmission delay and connection defect problems. Bluetooth 5.3 will bring you a faster and more stable connection with less sound quality loss. Uninterrupted experience for music play and hands-free calls, it will automatically connect the last paired Bluetooth device.