1Colorful Light: The bluetooth player has a colorful light design, can make your car more beautiful, bringing a relaxing and enjoyable driving experience. 2Double Charging Ports: The bluetooth Fm transmitter enables you to charge two devices simultaneously while you are listening to music, no longer have to worry about not having enough USB ports to charge. 3Premium Music Experience: The handfree radio adapter can provide premium and melodious music for passengers and driver when listening to music, bringing a excellent listening enjoyment. 4Multifunctional Use: The Fm transmitter provides faster pairing and more stable sound than others, can automatically switch from music playing to handfree talking when answering a phone call, convenient and simple to use. 5Various Fitness: The USB charger player uses the delicate technology design to match most cars in size and function, ensuring the normal operation of your car, providing a convenient drive.