Premium Sound Quality: Dual-mic system offers much better sound quality with powerful bass Two Ways to Connect: Supports Bluetooth and flash drive connection for playback Advanced Bluetooth 5.0: Upgraded Bluetooth 5.0 technology, faster response with higher stability Fast Charge Your Device in a Snap: Supports PD 18w(Max.) fast charging with the USB-C port Large LED Screen with Dual Display: Shows frequency band and battery voltage alternately, so you'll know the status at a glance Specification: Name: Baseus S-09 Pro Series Car FM Transmitter Model No.: BS-CH010 Working voltage: DC12-24V Transmission frequency: 87.5-108.0MHz FM transmission distance: andlt 16ft BT version: V5.0 Effective distance: about 32ft Supported flash disk or TF card capacity: 128G Audio format: MP3 or WAV or FLAC or APE or WMA Compatible car models: 12V or 24V battery car Output power: 35W (Max.) Charging USB output: 5V-2.4A (Max.) Playback USB output: 5V-1A (Max.) USB-C output: 5V-2.4A, 9V-2A, 12V-1.5A (Max.)