1-Key Hi-Fi Bass Booster: Music Player FM Transmitter with a 1-key enhance Bass button, you can enjoy 100% more bass than oridinary bluetooth fm transmitter via the music sound effect button “ b”.Playing the music via U disk or Bluetooth, provides you the option of enjoying the crystal clear and stereo sound music playing by your vehicle's speakers while immersing yourself in HiFi music.Make our FM Bluetooth Car Adapter the perfect companion for your journey. 20W PD3.0 Type-C & 18W QC3.0 USB Ports:Bluetooth Charger Adapter Car can fast charge two devices simultaneously via the PD3.0 and QC3.0 port (38W in total). Better-charging perf.20W PD3.0 of charging power enables you to charge your device 4X faster than 2.4A chargers while you are streaming music or video, charge iPhone 13 from 0-60% less than 30 minutes.The QC Port up to 18W output, which can charge compatible device to 80% in 35 minutes. Upgraded V5.0&Compatibility for 12-24V Vehicles: Our Wireless Bluetooth Radio Adapter with advanced Bluetooth V5.0 chip provides faster pairing and more stable sound than other normal products in the market. Compared to Bluetooth 4.2, it offers two times higher transmission efficiency, four times higher transmission distance, lower power consumption, effectively avoid the problems of unstable connection.Widely compatible with any Bluetooth devices as well as any 12-24 V car, van and truck. Siri/Google/Samsung Bixby Assistant: V5.0 Bluetooth FM transmitter supports voice commands to ensure safe driving, you can stay fully focused on the road by engaging Siri or Google/Samsung Bixby Assistant in making phone calls, sending texts or getting driving directions. This option allows you to get your things done more conveniently and enjoy complete voice-control while driving. Better Hands-Free Calling: Answering/redialing/dismissing or ending a call maybe done by just simply clicking a button. This function seamlessly switches between incoming calls and music. A high-performance microphone with Noise Suppression (CVC) technology grants you crystal clear call. Loud voice reports phone numbers and with this you can never miss any important phone call.