QC3.0 & DUAL USB CONNECTION: Maximum charging power! Supports charging two devices simultaneously. One port is Quick Charge 3.0, providing charging speeds up to 4x faster than standard charging. The second USB port supports charging and data transfer, compatible with flash drives up to 64GB.FREE SPEECH: Features a built-in high-sensitivity microphone with echo suppression and CVC noise cancellation technology for clear hands-free calls. Automatically switches between music playback and incoming calls for seamless operation.WIDE COMPATIBILITY: Compatible with all Bluetooth-enabled devices, including iPhones, iPads, iPods, tablets, Samsung, HTC, Sony, and other Android smartphones. Enables hands-free calling and wireless audio streaming.BLUETOOTH 4.2 LOSSLESS TRANSMISSION: Equipped with Bluetooth 4.2 technology for stable FM signal transmission and improved anti-interference performance. Delivers high-quality, lossless stereo audio streaming through your car's FM radio.COMPACT DESIGN WITH LED DISPLAY: Sleek, compact design with a metal finish and matte ABS housing blends seamlessly with your car interior. Integrated LED display allows easy visibility and operation, even in low-light conditions.