The Yesido Y39 is a multi-functional Bluetooth FM Transmitter Car Charger that combines music playback, hands-free calling, and fast charging in one sleek design. With dual USB ports, it supports simultaneous device charging and features Bluetooth 5.0 for seamless audio streaming. Compatible with MP3/WAV/FLAC/APE/WMA formats and FM frequency range 87.5–108MHz, it’s your all-in-one car audio and charging solution. Specifications: Function: FM Transmitter, MP3 Player, Bluetooth Receiver, Car Charger Material: ABS + Aluminum Alloy + PC Bluetooth Version: 5.0 FM Frequency Range: 87.5 – 108 MHz Audio Formats Supported: MP3, WAV, FLAC, APE, WMA USB Ports: 2 (USB1: 5V/2A, USB2: 5V/1A) Input Voltage: 12V–24V Max Output: 3A Supported Protocols: QC, PD, PPS, SCP, SVP Key Features: Smart MP3 Player & FM Transmitter: Play music via USB or Bluetooth and broadcast to your car stereo Dual USB Ports: Charge two devices at once with 3A total output Bluetooth 5.0: Fast, stable connectivity for streaming and calls Multi-Format Support: Plays MP3, WAV, FLAC, APE, WMA Smart Charging Chip: Balances charging to protect connected devices Telescopic Cable Design: Covers a wide car range for flexible positioning Compact & Durable Build: High-quality ABS and aluminum alloy construction