Bluetooth Wireless FM 2.4A QC3.0 Doppio USB Adattatore AUX Auto Lettore Musicale MP3
Dual USB 2.4A QC3.0. 8 Colorful LED Backlit Modes: Long press the light button on the fm transmitter wireless for car to enter the light change mode, and then spin the knob to adjust to the light mode you want.