CAR BLUETOOTH 5.0 The car bluetooth adapter has a built-in 5.0 chip, which makes the device more stable and faster pairing and transmission, worry-free all the way, and driving with peace of mind;Dual USB PORTThis FM transmitter bluetooth for car has QC3.0 intelligent fast charging function, which can charge mobile phones, tablet computers and other electronic products,The FM transmitter has built-in overcurrent, overvoltage, short-circuit protection and intelligent temperature control to ensure charging safety;1.44 TFT COLOR SCREEN This one bluetooth fm transmitter for car provides a wider visual interface, which can display the caller number, track name, FM frequency, battery voltage, etc;HANDS-FREE CALLBluetooth for car makes your driving easier answer/hang up/reject/redial calls suitable for cars, vans and trucks (12-24V);FM TRANSMITTER INSTRUCTIONS Fast and stable transmission of full-range stereo, frequency (87.5-108.0). for a better experience, adjust the frequency to the free band in your location;