⚡ 38W PD +QC Fast Charging. The car adapters can fast charge two devices simultaneously via PD 20W and QC3.0 18W port (38W total), 4X faster than standard chargers. ⚡ Advanced Bluetooth 5.1 Technology. Built-in Bluetooth 5.1 chip provides a more stable connection for streaming music over FM frequency and making hands-free calls, allowing for faster pairing with compatible devices, built-in microphone, supporting smart voice navigation from your phone, streaming the audio from navigation app/Siri/Google Assistant to your car. ⚡ Strong Dynamic Hi-Fi bass boost. Exclusive bass key-press juicing up the stereo effect makes this device stand out, which offers you crystal-clear sound while you are enjoying the long ride with your beloved ones. ⚡ Answer Calls Hands-free. Press only one button, you can take a hands-free phone call easily and safely. CVC noise cancellation can reduce background noises and offer clearer hands-free calling to ensure safer and more reassuring driving. ️ ⚡Wide Compatibility & Exclusive Lifetime Warranty Service. Fit most devices that support Bluetooth function(such as iphone, ipad, ipod, tablet, samsung, htc, sony and other andriod smartphones.), and all vehicle type including car, van and truck(12-24V). We provide warranty and lifetime support. ⚡WHAT YOU GET: LENCENT Bluetooth radio transmitter for car*1, User Guide*1. WE CARE FOR YOU: This item comes with friendly customer solution. Please email the LENCENT US-authorized store first for a solution if meeting any connect issue or using problems , we will be sure to provide a satisfying solution for you.