Fast Charging with 3 USB Ports: Designed with 18W and QC3.0 quick charge port as as a normal 5V/1A USB port (U disk port), this transmitter enables you to charge 3 devices simultaneously while you are listening to music. The 2 quick charging ports offer up to 4 faster charging speed than standard charger, you no have to worry about not having enough USB ports to charge and slow charging.9 RGB Lighting Modes: Upgraded Bluetooth car adaptor with 8 static modes and 1 dynamic RGB, you can short press the light switch button to get the 7 single color modes, including red, green, blue, yellow, purple, cyan, white; And then short press 8 and 9 to enjoy the static rainbow and dynamic rainbow lighting modes. It brings you a comfortable and romantic while using the transmitter.Siri Google Assistant: Bluetooth transmitter supports voice commands to safe driving. You can intelligent Siri or Google Assistant to make phone calls, send texts, get driving directions or voice navigation, so you can stay fully focused on the road and make your driving easier, and more convenient.2 Playing Modes: The Bluetooth car transmitter allows you to enjoy stereo and Hi-Fi music with this two playing modes: A: U disk (up to 32G) B: Bluetooth connection. Note: Support MP3/WMA/FLAC music. With full range of audible frequencies, you are free to listen to music without distortions of the original signal from your Smartphones and more Bluetooth enabled devices.Crystal Hands-free Calls: Advanced Bluetooth V5.0 + EDR provides a faster and more stable connection. High-performance microphone with CVC noise cancellation technology, greatly amplify sound and strengthen sound quality, which gives you a crystal-clear hands-free calling and voice navigation. Easy to answer/redial/ up or rej calls via the multifunctional button, it helps you seamlessly switches between incoming calls and music.Colour: blackMaterial: plasticPackage Contents:1 * Bluetooth Car AdapterOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.