Charge two devices simultaneously via USB 5V/2.4A and PD 5V/3A, 9V/2A, 12V/1.5A for efficient charging Large LCD screen with clear night visibility, supports lossless sound quality and TF card playback with lyrics display Retractable spring cable design, AUX audio input, supports incoming call announcement, one-key answering and hanging up Real-time battery voltage monitoring compatible with various car models for enhanced safety Short press EQ button to adjust subwoofer mode Bluetooth version 5.0 with up to 10 meters wireless transmission range Compatible with 12V-24V car systems FM transmitter with frequency range 87.5108.0 MHz (short press CH button to adjust frequency) Wireless hands-free calling with built-in microphone for safe and convenient call management (short press to answer/end, long press to reject) Streams music from smartphone to car stereo via FM transmission Supports TF card playback and plug-and-play AUX connection, allows direct phone connection without Bluetooth to avoid signal interference Note: Slight variations may occur due to different production batches Color: As shown in picture Material: Plastic Package Contents: 1 x Car hands-free FM transmitter (Other accessories not included) Note: Lighting reflections and screen differences may cause slight color variation between image and actual item. Measurement error allowed within +/- 1-3 cm