Car FM Transmitter: KM30 car transmitter provides multi-solutions for your hands-free driving and in-car stereo streaming. It features a big display screen offering a wider visual interface for more information, such as incoming phone number, track name, FM frequency, battery voltage, connected device and more. Stronger Microphone for Better Hands-free Calls: KM30 utilizes stronger microphone, greatly amplify sound receptiond strengthen sound quality, bringing a higher level of experience. Treble Bass Music Streaming: You can stream music directly from your car radio via \/ microSD card \/ Aux out, and enjoy free switching between treble and bass mode, the color spectrum auto-syncs with your music. QC3.0 Fast Charging: It Comes with a QC3.0 charging port to ver high-speed charging to driver and passenger, the charging time is 4 times faster than conventional charging. Bring Voice Service in Your Car: You can stay fully focused on the road by using Siri or Google Assistant to make phone calls, send texts or get driving directions. KM30 brings voice service in your car. Supports 180 angle adjustment, easy to rotate, not obstructed, not blocked. Song display, lyrics display, volume display, caller ID, voltage display, FM frequency display. Support 8 language display, support all kinds of song names. 1.8-inch color TFT display Packing list: 1 piece player