【QC3.0+PD+TF Card Play, 3 Ports USB Fast Charger】Bluetooth FM transmitter support charging two devices simultaneously, one port is quick charge 3.0 port. the charger efficiency is more than 80%. | 【Enjoy Hi-Fi Stereo Audio 】 The Bluetooth car adapter is derived from an advanced Bluetooth V5.0 chip with DSP + D2AP noise reduction stereo processing technology. It can effectively enhance sound quality and avoid the problems of unstable connection. | 【Hands-free Phone Call】Completely support Siri/Google voice assistant. A built-in high-performance microphone with Noise Suppression (CVC) technology makes your call voice crystal and clear. Enjoy easy, convenient, and safe voice-control navigation broadcast functions while you driving. | 【Wide Compatibility】The Bluetooth Fm transmitter for the car also has wide compatibility with all smartphones and most car models(12V-24V) on the market such as vans, cars, SUVs, trucks, excavators, and so on. | 【Easy to Set up&Multi-safety protection】:Bluetooth car fm transmitter can be paired as a hands-free kit with all bluetooth enabled devices, such as iphone, ipad, ipod, tablet, samsung, htc, sony and other andriod smartphones.Comes with built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection.