【STUNNING LED AMBIENT LIGHTING】This car Bluetooth adapter features an LED light that illuminates its entire top surface, making it easy to find even in the dark. Available in 5 colors, you may match the light to your mood and preferences. While the music is on, the light ring pulses in a breathing flashing effect, creating a dynamic atmosphere. (Note: You can turn off the light if you prefer.) | 【DUAL FAST CHARGING PORTS】Equipped with PD 30W and QC3.0 18W ports, this FM transmitter Bluetooth simultaneously charges two devices at high speed, including your phone, smartwatch, or tablet. With the maximum power of 48W, this charger is 90% more efficient than normal ones, so you can boost your devices from 0% to 80% in just 30 minutes. No more low battery anxiety on the road! | 【THE CUTTING-EDGE BLUETOOTH 5.3 TECH】This Bluetooth adapter for car employs the latest Bluetooth 5.3 chip, delivering lightning-fast transmission, rock-solid connection, and ultra-low latency. Once you pair the FM Bluetooth transmitter, it will automatically reconnect to your phone when turned on again. Experience high-fidelity music like never before! | 【CLEARER HANDS-FREE CALLING】Just press one button to answer, hang up, or reject calls, enjoying hands-free convenience. Our improved Bluetooth audio transmitter boasts advanced CVC technology that reduces noise and cancels echoes, and a built-in premium microphone for high-fidelity sound. Enjoy crystal-clear communication with your callers! | 【WIDE APPLICABILITY & SECURITY】This Bluetooth adapter fits all 12V-24V vehicles and works with most Bluetooth devices (smartphones, tablets, and laptops). Moreover, it monitors the car's voltage and flashes an alarm when it falls below 11V to prevent battery problems. There are also multiple protections with the device such as over-current, over-voltage, overheat, and short-circuit to ensure safe charging while driving.