EQ subwoofer one-button adjustment, one-button switching subwoofer mode to car audio quality.Built-in high-performance decoding module, with Bluetooth 5.0 lossless transmission, high-resolution high-performance stereo sound, the sound quality is more shocking.Bluetooth 5.0 MCU+DSP dual-core processor, intelligent noise reduction, no noise, more stable.Colorful breathing atmosphere light, seven-color light self-adjustment.Compatible with various of U disk, just adjust the car radio frequency and Bluetooth MP3 to be .Input: 12-24VOutput: 5V-1.5a or 5V-3.1A C port: 9V-2A power: 7.5-20WOutput port type: USB, Type-cProtocol: Bluetooth 5.0Hardware functions: FM transmitter, Bluetooth, USB charging, reading U disk, TF/color light, EQ functionType: Vehicle TransmitterColour: BlackMaterial: ABSPackage Contents:1 * TransmitterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.