1. 7-color LED backlight version: Support 7-color LED backlight. You can get a visually stunning color display. It's a good way to match the colors that are already in the car. 2. Quick Charge 3.0: Efficient USB charging technology. Up to 4 times faster than standard chargers, compatible devices can be charged to 80% in just 35 minutes. Equipped with a voltmeter to show you the condition of your car battery. 3. Crystal Clear Music Streaming: You can play music on your car stereo via Bluetooth / USB flash drive ( 32GB) / microSD card ( 32GB). Advanced noise reduction technology ensures high quality, crystal clear sound. Note: MP3 / WMA / FLAC / AAC / WAV format music is supported. 4. Crystal Hands-free Calls: Bluetooth provides a stable connection and the echo cancellation reduces background noise for better hands-free calls. 5. Compatible with Siri and Google Assistant: The FM transmitter Bluetooth supports voice commands to ensure safe driving. Use Siri or Google Assistant to make calls, send texts, or get directions. Enjoy full voice control while driving.