Handsfree Car Charger with Wireless Bluetooth FM Transmitter, MP3 Music Player and Stereo Adapter, Dual USB Ports for Fast Charging, Compatible with All Smartphones

Dual USB Car Charger: Equipped with 2 USB ports, one 1A port for reading and charging and a 3.1A smart port that automatically detects device type to provide optimal charging for all USB-powered devices.
Wireless Bluetooth FM Transmitter: Stream music, transfer phone calls, and play MP3 files directly through your car stereo. Compatible with all smartphones and Bluetooth-enabled devices for seamless connectivity.
Hands-Free Calling: Built-in microphone allows automatic switching to hands-free mode when receiving calls. Answer, reject, hang up, or redial with a single button for safer driving and full control without distraction.
Car Battery Voltage Display: Monitors vehicle battery health by displaying voltage when plugged into the cigarette port. Automatically switches to music playback after 3 seconds, keeping you informed and entertained.
MP3 and Music Playback: Supports Bluetooth, USB disk, and TF card MP3/WMA playback with anti-interference technology and CVC noise reduction. Automatically reconnects to memorized devices for continuous music while charging.