3 USB Port & QC3.0 : Input 12-24 V; Output 3 USB ports: for the QC3.0- devices, Up to 4X faster than standard chargers, able to charge compatible devices to 80% in just 35 minutes. The other USB charging port supports 5V/2.4 A output which can intelligently identify android or other devices. Besides,top of USB port for U-disk reading . Support Charge 2 devices simultaneously with FM . Share the charge port with your friends while listening music. Connect Your car: Adjust the car station to the same frequency as the step one shows. 1.8” Color Screen & Flexible Gooseneck : 1.8" LCD screen is large and clear enough for you to easily read voltage, volume, song name(Under TF/U-disk Modes), incoming number, FM frequecny,volume, etc. at daytime and night, and its neck is of great flexibility for better and convenient repositioning. 7.CH/A button 4 Ways to connect Your device: 1.Bluetoth connection:Turn on Bluetoth of your phone firstly and then connect the "BH346A"; 2. Aux ;3.U disk ;4. . FM ×1 Audio ×1 The FM for car has electrical of Short Circuit/Over-voltage/Over-current/Overheating/ Overcharge, you can safely apply it to any vehicles with voltage of 12 V-24 V. 4. Aux in/out port 1.Power off : Never worry about draining car battery : You could push and hold the call button for 3 seconds to turn it off. 3. 1.8''Color Display 12. 5V/2.4 A USB charge port 2. TF/SD card slot. Hands Calling & Power Off : Built-in microphone would work loud and clear for hands- calling, which makes your driving safer and handier.This Bluetoth contain the first-rate Bluetoth chip, its connectivity is and more stable without randomly disconnecting trouble. Also the could your car battery : Just long the buttons to power off and no need plug or unplug it out from your car socket every time. 3.Answer/reject/redial: One click to make the hands- calling. 13.QC 3.0 quick charging port Flexible metal hose: Flexible metal hose offer you a much wider viewing for incoming phone number, battery voltage, song name, FM frequency, connected Bluetoth device and more. Auto Search Unused Station& One Second to Pair: Never worry about couldn't finding an unused station. This Bluetoth FM for Car can find unused station automatically, just “ CH/A” button , which is the easiest way to pair station that with no interference. One second to pair your car, the efficiency of the automatic frequency search is 50% higher than that of the normal FM in the market. Voice Navigation: With voice navigation features, open the App to get the information of destination on cell phone, broadcast your car navigation more clearly and simply when using the fm .Making you driving safer. Auto Search unused station: Short the CH/A button to get an unused station (not the local station) . 1. U Disk for Music Sound & 5 EQ Modes : The FM Bluetoth adopt CVC noise cancellation technology, its sound quality is when playing via U Disk//Bluetoth/Aux Cord, and it also support 5 EQ modes:CLASSICAL/ROCK/JAZZ/ NORMAL music styles when working with U disk and available. (When connect the Bluetoth,please choose EQ in your music app). 2.Volume control: You could volume it up and down by rotating the call button. Great Compatibility: This car bluetoth adapter is compatible with any vehicles/ Truck with voltage of 12V-24V and Bluetoth devices in the market. Support Bluetoth Protocol A2DP/AVRCP/HSP/HFP. Aux In/out Port 4 Ways To Connect Your Device: Bluetoth Connection:Turn On Bluetoth Of Your Phone Firstly And Then Connect The "BH346A"; Aux ;U Disk ; . TF/SD Card Slot. Volume Control: You Could Volume It Up And Down By Rotating The Call Button. Power Off : Never Worry About Draining Car Battery : You Could Push And Hold The Call Button For 3 Seconds To Turn It Off.