[Upgraded Version of Classic KM18]: New KM18 Upgraded with 1.8 TFT color display screen, offers a wider visual interface for more information, such as incoming phone number, track name, FM frequency, battery voltage, Bluetooth connected device and more. [QC3.0 & 5V/2.4A Dual USB Charging]: The Bluetooth car adapter comes with a 5V/2.4A and a QC3.0 charging port to deliver simultaneous high-speed charging to driver and passenger, the charging time is 4 times faster than conventional charging. [Crystal Hands-free Calls]: Nulaxy provides a stable connection and echo-cancellation reduces background noise for better hands-free calls. [Music Streaming]: Play favorite songs on car stereo through Bluetooth / microSD card / Aux. You can customize music from 5 EQ styles (normal, classic, pop, rock and jazz) and 4 music playback modes (Repeat All/ One/ Random/ Folder) in micorSD Card. [Safety Feature]: Safety first. KM18 Color is equipped with a voltmeter to show you the condition of your car b