2 metal rollers allow you to customize the DSP music, adding your own favorite sounds to your car's music atmosphere Equipped with an electret microphone to enhance the sound pickup effect in high-speed cars, freeing your hands for easy communication The unique sound-picking atmosphere light design has a gorgeous effect. When playing music, it flashes according to the rhythm of the music melody Wirelessly stream calls and audio to your car FM stereo system via Bluetooth Automatically switch from music streaming to hands-free mode when answering a call Rhythmic ambient lights that respond to the rhythm of music High-definition, delay-free stereo calls improve the effect of remote calls It supports the mainstream voice assistant functions on the market and can be woken up by long pressing the phone button Detect and display the car battery voltage when turned on Supports dual-port fast charging to meet the needs of timely recharging of mobile phones, tablets, recorders, digital devices, etc. High-quality chip, lower power consumption, more stable performance Wide voltage design: The maximum range is compatible with the 9-28V voltage range The built-in independent noise reduction chip reduces most FM noise and road noise during high-speed driving, allowing users to enjoy high-quality calls and music Specification: Product model: MT04 Input: DC12-24V USB-A output: 5V or 2.4A USB-C output: 5V or 3A, 9V or 3A, 12V or 3A, 15V or 3A, 20V or 2.5A (PD45W) Total power: 12V: 42W, 24V: 57W (Max.) Working temperature: 0-60℃(32-140℉) Protection measures: overcurrent protection, overload protection, overheating protection, overvoltage protection, short circuit protection Bluetooth version: 5.3 FM frequency: 87.5-108.0MHz Supported music formats: MP3, WMA, APE, FLAC, WAV Bluetooth distance: 10m FM transmitting distance: 3m Bluetooth protocol: AVRCP, HFP, A2DP U disk music: supports up to 64G U-disk reading Product weight: 40g Product material: ABSandPC