Charge three devices at once: two USB ports plus one USB-C port with QC/PD support lets you power a phone, tablet and accessory simultaneously. Eliminates fighting for a single car charger and keeps devices ready for navigation, calls and media. Reliable wireless audio: Built-in FM transmitter and Wireless 5.0 modules provide stable, lossless audio streaming from your phone to the car stereo. Adjustable frequency tuning helps avoid interference and keeps audio clear on different stations. Multiple media sources: Play music from Bluetooth, a USB flash drive, or the radio input. The unit supports multi-format music playback so you can use whatever source you prefer without reformatting files. Compact plug-in design: Small, plug-and-play form factor installs directly into the vehicle socket for a tidy, integrated setup. No extra adapters or complex wiring required. Key attributes Function: FM transmission, Bluetooth 5.0 audio streaming, USB/Type-C charging, USB flash drive and radio inputs for media playback. Compatibility: Works with smartphones, tablets, USB storage devices and any car stereo that accepts an FM input frequency. Performance: Simultaneous charging for up to three devices; QC/PD protocols for faster charging; adjustable FM frequency and stable Wireless 5.0 connection for consistent audio. Size and installation: Compact plug-in unit for easy installation and space-saving in the vehicle. How this solves common problems Keeps all devices charged on the road so navigation, calls and entertainment never die mid-trip. Eliminates the need to replace an older car stereo to get Bluetooth audio by streaming via FM. Lets you play a variety of file formats from a USB drive or use radio when Bluetooth isn’t available. Reduces clutter with an integrated plug-in design—no extra cables or adapters left dangling. Practical use scenarios 1) Daily commute: Stream podcasts or music from your phone via Bluetooth 5.0 to the car stereo while charging both your phone and a passenger’s device with the USB and Type-C ports. 2) Road trip: Play a preloaded USB flash drive of mixed-format music and keep a tablet or camera charged using the QC/PD Type-C port for long-distance use. 3) Older-car upgrade: Add wireless audio and multi-device charging to a car without Bluetooth by tuning the transmitter to an open FM frequency and connecting phones via Wireless 5.0. What to expect Straightforward plug-and-play operation. Adjustable FM frequency for clear reception on different routes. Simultaneous device charging with QC/PD fast-charge support. Support for USB and radio inputs and multi-format music playback. This unit provides a compact, dependable way to add modern audio streaming and multi-device charging to your vehicle without modifying the factory stereo.