Product Description 【Quick Charger 3.0 Fast Charging & Siri/Google Voice Assistant】 In addition to the QC3.0 port, it also has two USB-A ports that can output a total of 15W. It can charge three devices simultaneously, solving the problem of low battery on multiple devices even while on the move. QC3.0 fast charging is possible, achieving a speed about 4 times faster than conventional chargers. You can long-press the "TRE" button to activate Siri or Google Assistant and make calls, send messages, or send emails. 【Cutting-Edge Bluetooth 5.0 Second Generation Chip & CVC Noise Reduction Function】 Adopts the latest Bluetooth 5.0 second-generation chip, doubling the transfer speed. Once Bluetooth pairing is performed, it will automatically reconnect when the engine is turned ON from the second time onwards. With unique CVC noise reduction technology and a built-in high-sensitivity microphone, external environmental noise such as engine noise is significantly reduced. 【Equipped with a 1.8-inch Ultra-Large LCD Screen & 7 EQ Settings Available】 Equipped with an ultra-large TFT screen, the car battery voltage, song title, FM radio frequency, volume, etc., are all clearly visible at a glance, even in the dark. You can select the sound quality from a variety of equalizers according to the sound source. There are 2 custom equalizers that allow you to finely adjust your preferences, such as Rock, Pop, Jazz, Classical, Soft, Natural, and Bass, and you can freely adjust the bass and treble. 【Four Music Playback Modes & Hands-Free Calling】 ① Bluetooth 5.0 wireless connection (various Bluetooth devices such as Android and Apple) ② USB memory (≤64GB) ③ microSD card (≤64GB) ④ AUX cable. By using an AUX cable, you can connect the AUX terminal of our FM transmitter to the audio AUX terminal of your car stereo to listen to music with higher sound quality. With a jog dial, you can answer/reject incoming calls/redial calls with just one touch. 【Voltage Measurement】 When plugged into the car's socket, it automatically detects the battery voltage and displays it on the display. Compatible with 12V~24V cars. Radio Law certification obtained (Number 204-B00019) / "Weak Radio" inspection passed. Thank you very much! ☆