About this item High version Bluetooth 5.0: The FM transmitter uses high version Bluetooth 5.0 which not only achieves stable connection and echo cancellation, background noise reduction and better hands-free calling.The upgrade breaks the ability to connect up to 2 phones. 7 Light color switch: Short press "M" to change the light color at any time.Toggle the light sequence red/orange/yellow/green/cyan/blue/purple/blast and you get a visually stunning color display.The perfect way to increase ambient light in your car. Dual USB charging port: Bluetooth transmitter can automatically detect the charger type, USB1 5V/2.4A, USB2 QC3.0 fast charging, get the maximum charging current 5V/3A, save charging time and protect your phonecharging at the same time. 3 Music Playing Modes: The Bluetooth car kit can play high quality music (MP3/WMA/WAV format), supports Bluetooth input, TF card input, AUX input mode;Full frequency FM 87.5-108MHZ spot broadcast. Support SIRI/GOOGLE: The FM transmitter supports triggering mobile phone Siri/Google voice assistant to ensure safe driving.One-touch voice assistant function to make calls, send text messages or get directions and enjoy full voice control while driving.