This Is A Multifunctional Device That Combines Charging, An Fm Transmitter And A Hands-Free Headset. By Connecting The Accessory To The Cigarette Lighter You Can: Charge Several Mobile Devices. Play Through The Radio Tape Recorder Musical Compositions Recorded On A Usb Flash Drive. Connect Smartphone Via Bluetooth. And Listen To Your Favorite Playlists Saved In It. Answer Incoming Calls With The Touch Of A Button And Speak Hands-Free. Baseus Locomotive Is An Innovative Device For People Who Spend Most Of The Day On The Road, Have To Talk On The Phone While Driving And Need A High-Quality And Convenient Speakerphone. Benefits Of The Baseus Locomotive Fm Transmitter Car Charger Operates From 12-24V And Is Suitable For Most Car Models. Two Usb Ports Allow You To Charge Multiple Devices At The Same Time. On Top, Under The Adapter Cover, There Is An Additional Socket Into Which You Can Insert Another Device, For Example, A Charger. A Usb Flash Drive With Recorded Tracks Is Connected To The Port Marked With A Note. To Listen To Music, You Need To Insert The Adapter Into The Cigarette Lighter Socket. And Then Set The Same Frequency On The Transmitter And Fm Receiver. After That, You Can Enjoy Your Favorite Music Without Ads And Chatter. By Connecting Your Smartphone To The Transmitter Via Bluetooth, You Can Listen To The Created Playlists Without Additional Hanging Wires. In Addition To Playing Audio Files, The Device Allows You To Talk Hands-Free Without Being Distracted From The Road. It'S Convenient And Safe. The Transmitter Is Synchronized With Two Mobile Phones At The Same Time. While Music Is Being Played From The First Smartphone, The Fm Modulator Will Automatically Switch To The Second - When An Incoming Call Arrives On It. The Fm Modulator Provides Simple And Convenient One-Button Operation. By Clicking On It Or Twisting It, You Can: Start Playing Music, Pause It, Adjust The Volume, Switch Tracks And Manage Calls To Your Phone. And Also Adjust The Operating Frequency. There Is A Small Display On The Adapter Body. Which Displays The Operating Frequency. In Its Left Corner Is An Led Indicator. A Green Or Yellow Led Light Will Tell You That The Device Is Working Properly. Specifications: Input Voltage: 12-24 V Total Output Current: 3.4 A (Max) Material: Pc Bluetooth Version: 4.2 Bluetooth Range: 10 M Transmission Frequency: 87.5 - 108 Mhz Operating Range: Up To 5 M Supported Formats: Wav / Flac / Mp3/ Ape/ Vma Supported Media: Usb Stick (Max 32G)