【7 Color LED Light】Designed with 7 lights colors,including green/ red/ blue/ yellow/ cyan/ purple/ white/ flicker,The bling exterior electronics car kit makes your car more enjoyable.The LED light can be turn off. | 【PD 20W and QC 18W Fast Charging】 Designed with PD 20W and QC3.0 quick charge port as well as a normal 5V/1A USB port (U disk port), this Bluetooth FM transmitter enables you to charge 3 devices simultaneously while you are listening to music. The 2 quick charging ports offer up to 4 times faster charging speed than standard charger, you no longer have to worry about not having enough USB ports to charge and slow charging. | 【3 Music Play Modes】 Supports Bluetooth play, microSD card play (up to 32GB), USB flash drive play (up to 32GB). Attention: to avoid any noise, please remember to adjust the frequency of the fm transmitter just the same as it on the car radio (Choose a blank radio station to avoid signal interference) | 【Bluetooth V5.0 & Handsfree Car Kit】 With an advanced Bluetooth V5.0 chip, this FM transmitter Bluetooth provides faster pairing and more stable sound than others. Built-in microphone will automatically switches from music playing to hands-free talking when answering a phone call. answer/end/reject/redial a call or activate Siri/Google Now by clicking the multifunctional button. | 【Voltage Warning Function】 The Bluetooth FM transmitter for car suits for all 12V-24V cars, trucks, SUVs. The LCD screen can show the current FM radio station and monitor the battery voltage in real-time. The Bluetooth car adapter is convenient for you to keep track of the health status of your car battery, and effectively prevent various problems and protect your driving safety | 【after-sale service】 We 24-month after sales service. Our professional after-sales team is ready to solve any product problems for you.Please email the We store first for a solution if meeting any connect issue or using problems , we will be sure to provide a satisfying solution for you.