【Total 50W PD & QC Quick Charging】The UNBREAKcable Bluetooth Adapter Car can fast charge two devices simultaneously via the PD3.0 and QC3.0 port (50W in total). The PD Port up to 30W output, can fast charge Samsung, iPhone, Google, Pixel 3 etc which is 8 times faster than before. 【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. Easy to answer or end a call with one key. No need to pick up and hold your phone. Make your driving process safer. 【Strong Dynamic Hi-Fi bass boost】The Upgraded Bluetooth 5.1 with DSP technology could deliver 2X steadier transmission speed without distorted for Hi-Fi stereo music. Moreover, you could enjoy free switching between Hi-Fi and Deep bass mode. 【Car Battery Voltage Detection & Orange Ambient Light】The FM transmitter will display car’s voltage when plugged into the cigarette lighter.