Charge two devices simultaneously, USB 5V/2.4A + PD: 5V/3A, 9V/2A, 12V/1.5A for efficient charging Large screen display with lossless sound quality, supports TF card playback with on-screen information Retractable spring cable, AUX audio output, supports incoming call number broadcast, one-key answer and hang-up Real-time monitoring of battery voltage for broad compatibility and enhanced safety Short press EQ key to adjust subwoofer mode Bluetooth Version: 5.0 with 10m transmission range Compatible with 12V-24V vehicles Large LCD screen for improved clarity at night FM transmitter with 87.5-108.0 MHz frequency range (short press CH button for frequency adjustment) Wireless hands-free calling with built-in microphone for convenient and safe call management (short press to answer/end, long press to reject) Streams music from smartphone to car audio system via FM transmission Supports TF card playback, plug-and-play AUX audio connection; allows direct phone connection without Bluetooth, reducing signal interference Note: Slight variations may occur due to different production batches Color: As shown in photo Material: Plastic Package Contents: 1 x Car hands-free FM transmitter Note: Light reflection and display differences may cause slight color variation between image and actual item. Measurement may vary by +/- 1-3cm