Thank you for viewing. Shipped promptly within the same day to two days. [Product Description] This is a Bluetooth FM transmitter with a USB port. It's easy to use, allowing you to easily listen to your favorite music or audio from YouTube through your car speakers. It has two USB ports, with a maximum output of 3.1A, enabling fast charging for smartphones with large-capacity batteries. It also has call answer/end functions, allowing for hands-free calls. --How to Use-- ① Connect this device to your car's cigarette lighter socket. ② Match the radio frequency of your car audio with the frequency of this device. ③ Connect your smartphone and this device via Bluetooth. With these three steps, you can play your smartphone's audio through your car speakers. You can also play music from a USB drive containing MP3 files. Compatible with 12V/24V cars, so it can be used in almost all vehicles in circulation. [Product Specifications] ・FM Frequency Range: 87.5～108Mhz ・USB Output: 5V / 1A (left)・3.1A (right) ・Weight: Approximately 30g ・Included: Main unit, instruction manual (English/Chinese) [Other Notes] There may be initial scratches due to being an imported product. Please read the product description and instruction manual. Returns are not accepted due to customer reasons such as a different image, not knowing how to use it, or no longer needing it. If there is an initial defect with the product, please contact us before giving a review. MP3 player, hands-free calling, fast charging, cigarette lighter socket ◯