Features:

• Music streaming media adapter and player: Wireless Bluetooth FM transmitter adapter supports Bluetooth /USB disk /TF card/MP3/WMA player. It has anti-interference performance and CVC technology. Listen to music while charging. Memory pairing is automatically connected at startup. Support WMA MP3 WAV APE FLAC music format.
• More compatibility: This Bluetooth cigarette lighter adapter can transfer calls /MP3 music/mobile phone sound to the car radio. Compatible with iPad,iPhone, Samsung Galaxy, Google, LG, HTC and Bluetooth devices. By pairing your device with a transmitter, you can stream music, podcasts, audiobooks, voice navigation, or any other audio content from your device to your car's radio. 
• Hands-free function: The car's Bluetooth adapter has a built-in microphone and call processing function, which automatically switches from the music playing state to hands-free mode when receiving a call. One-click answer/decline/raise your hand/recall. This allows you to talk hands-free while driving. The FM transmitter plays call audio through the car's speakers, ensuring clear communication without the need for a handheld mobile device.
• Car battery voltage and portability: the car auxiliary Bluetooth adapter displays the voltage for 3 seconds after plugging into the socket. Keep the battery healthy at all times. Then go to autoplay mode. The Bluetooth transmitter has a compact and portable design that allows users to easily move the transmitter between different vehicles, or even use it in a rental car or a friend's vehicle.
• Dual USB Car Charger: This Bluetooth car adapter has 2 USB charging ports and can charge most USB devices (5V-3.1A and 5V-1A). Input 12 v / 24 v. This feature allows you to charge your mobile device while driving. This is especially useful for long drives or when you rely heavily on your mobile device for navigation or music streaming.